Grade 5 Pre-Algebra worksheet focusing on solving 2-step equations.
Algebra 2-step equations worksheet for Grade 5 Pre-Algebra, featuring 12 problems to solve for the variable with instructions to show work.
GIF
359×464
8.6 KB
Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #1075569
⭐
Show Answer Key & Explanations
Step-by-step solution for: Algebra with 2 step equations worksheets | Worsheets library
▼
Show Answer Key & Explanations
Step-by-step solution for: Algebra with 2 step equations worksheets | Worsheets library
Let's solve each of these two-step equations step by step. The goal is to isolate the variable (usually *x* or *y*) on one side of the equation.
---
Step 1: Add 76 to both sides
10x = 754 + 76
10x = 830
Step 2: Divide both sides by 10
x = 830 ÷ 10
x = 83
---
Step 1: Add 19 to both sides
14y = 499 + 19
14y = 518
Step 2: Divide both sides by 14
y = 518 ÷ 14
y = 37
---
Step 1: Subtract 11 from both sides
55y = 2,981 − 11
55y = 2,970
Step 2: Divide both sides by 55
y = 2,970 ÷ 55
y = 54
---
Step 1: Add 46 to both sides
10z = 4 + 46
10z = 50
Step 2: Divide both sides by 10
z = 50 ÷ 10
z = 5
---
Step 1: Subtract 42 from both sides
40x = 1,162 − 42
40x = 1,120
Step 2: Divide both sides by 40
x = 1,120 ÷ 40
x = 28
---
Step 1: Subtract 73 from both sides
15x = 343 − 73
15x = 270
Step 2: Divide both sides by 15
x = 270 ÷ 15
x = 18
---
Step 1: Subtract 2,528 from both sides
−72y = 8 − 2,528
−72y = −2,520
Step 2: Divide both sides by −72
y = (−2,520) ÷ (−72)
y = 35
---
Step 1: Subtract 81 from both sides
68x = 1,849 − 81
68x = 1,768
Step 2: Divide both sides by 68
x = 1,768 ÷ 68
x = 26
---
Step 1: Add 93 to both sides
72y = 5,367 + 93
72y = 5,460
Step 2: Divide both sides by 72
y = 5,460 ÷ 72
y = 75.833... → Wait! Let's check:
Actually:
5,460 ÷ 72 = ?
Let’s divide:
72 × 75 = 5,400
5,460 − 5,400 = 60
So, 75 + 60/72 = 75 + 5/6 ≈ 75.833...
But let's see if it divides evenly:
Wait — maybe I made a mistake. Let's do it carefully:
72 × 75 = 5,400
5,460 − 5,400 = 60
60 ÷ 72 = 5/6 → not a whole number?
But let's double-check original equation:
72y − 93 = 5,367
72y = 5,367 + 93 = 5,460
Now: 5,460 ÷ 72
Divide numerator and denominator by 12:
5,460 ÷ 12 = 455
72 ÷ 12 = 6
So: 455 ÷ 6 = 75.833... → Not a whole number?
Wait — perhaps there's a typo or we should keep as fraction.
But let's check:
72 × 75 = 5,400
72 × 76 = 5,472 → too big
So no integer solution. But maybe it's okay.
Wait — let me recalculate:
Is 5,460 divisible by 72?
72 × 75 = 5,400
5,460 − 5,400 = 60 → remainder 60
So y = 5,460 / 72 = 455 / 6 = 75.833...
But let's simplify:
5,460 ÷ 72 = (divide numerator and denominator by 12):
5,460 ÷ 12 = 455
72 ÷ 12 = 6
So 455/6 = 75 5/6
But since this is a pre-algebra worksheet, maybe it's supposed to be an integer.
Wait — did I add correctly?
72y = 5,367 + 93 = 5,460 → correct
Try dividing 5,460 ÷ 72:
Do long division:
72 into 546 → 7 times (7×72=504), subtract: 546−504=42
Bring down 0 → 420
72 into 420 → 5 times (5×72=360), remainder 60
So 75.833... → y = 75.833..., or 75 5/6
But let’s assume decimal is acceptable.
y ≈ 75.83
Wait — maybe I made a calculation error earlier?
Wait — let's try plugging back in:
72 × 75.833... = 72 × (75 + 5/6) = 72×75 + 72×(5/6) = 5,400 + 60 = 5,460 → yes.
So y = 5,460 / 72 = 455 / 6 = 75 5/6
But perhaps better to leave as improper fraction or decimal.
But let's move on and come back.
Wait — maybe the problem expects exact fraction.
So y = 455/6 or 75 5/6
But let's check if I copied the problem right:
"72y − 93 = 5,367"
Yes.
So y = 5,460 / 72 = 75.833...
We'll write it as y = 75.83 (approx), but better to simplify:
5,460 ÷ 72 = divide numerator and denominator by 12:
5,460 ÷ 12 = 455
72 ÷ 12 = 6 → so y = 455/6
So y = 455/6 or 75 5/6
But let's keep it as y = 75.83 for now.
Wait — actually, let's check again:
72 × 75 = 5,400
72 × 76 = 5,472 → too big
So no, not integer.
So y = 5,460 / 72 = 75.833...
But let's reduce:
GCF of 5460 and 72?
72 = 8×9 = 2³×3²
5460 ÷ 2 = 2730; ÷2=1365 → odd
So divisible by 4? 5460 ÷ 4 = 1365 → yes
5460 ÷ 4 = 1365
72 ÷ 4 = 18 → 1365 / 18
1365 ÷ 3 = 455
18 ÷ 3 = 6 → 455 / 6
So y = 455/6 → final answer.
y = 455/6 or 75 5/6
We’ll write it as y = 75.83 if decimal, but exact is 455/6
But let's keep going.
---
Step 1: Subtract 93 from both sides
57z = 435 − 93
57z = 342
Step 2: Divide both sides by 57
z = 342 ÷ 57
Let’s compute:
57 × 6 = 342 → so z = 6
---
Step 1: Subtract 13 from both sides
33y = 277 − 13
33y = 264
Step 2: Divide both sides by 33
y = 264 ÷ 33
33 × 8 = 264 → so y = 8
---
Step 1: Subtract 77 from both sides
82x = 7,867 − 77
82x = 7,790
Step 2: Divide both sides by 82
x = 7,790 ÷ 82
Let’s divide:
82 × 90 = 7,380
7,790 − 7,380 = 410
82 × 5 = 410 → so total = 90 + 5 = 95
Check: 82 × 95 = ?
82 × 90 = 7,380
82 × 5 = 410
Total = 7,380 + 410 = 7,790 → yes!
So x = 95
---
1) x = 83
2) y = 37
3) y = 54
4) z = 5
5) x = 28
6) x = 18
7) y = 35
8) x = 26
9) y = 455/6 or 75 5/6 (or 75.83)
10) z = 6
11) y = 8
12) x = 95
---
- For #9, the answer is not an integer, but that’s okay. It’s still correct.
- Always check your work by plugging back in.
Would you like me to show the verification for any of them?
---
1) 10x − 76 = 754
Step 1: Add 76 to both sides
10x = 754 + 76
10x = 830
Step 2: Divide both sides by 10
x = 830 ÷ 10
x = 83
---
2) 14y − 19 = 499
Step 1: Add 19 to both sides
14y = 499 + 19
14y = 518
Step 2: Divide both sides by 14
y = 518 ÷ 14
y = 37
---
3) 11 + 55y = 2,981
Step 1: Subtract 11 from both sides
55y = 2,981 − 11
55y = 2,970
Step 2: Divide both sides by 55
y = 2,970 ÷ 55
y = 54
---
4) 10z − 46 = 4
Step 1: Add 46 to both sides
10z = 4 + 46
10z = 50
Step 2: Divide both sides by 10
z = 50 ÷ 10
z = 5
---
5) 40x + 42 = 1,162
Step 1: Subtract 42 from both sides
40x = 1,162 − 42
40x = 1,120
Step 2: Divide both sides by 40
x = 1,120 ÷ 40
x = 28
---
6) 73 + 15x = 343
Step 1: Subtract 73 from both sides
15x = 343 − 73
15x = 270
Step 2: Divide both sides by 15
x = 270 ÷ 15
x = 18
---
7) 2,528 − 72y = 8
Step 1: Subtract 2,528 from both sides
−72y = 8 − 2,528
−72y = −2,520
Step 2: Divide both sides by −72
y = (−2,520) ÷ (−72)
y = 35
---
8) 81 + 68x = 1,849
Step 1: Subtract 81 from both sides
68x = 1,849 − 81
68x = 1,768
Step 2: Divide both sides by 68
x = 1,768 ÷ 68
x = 26
---
9) 72y − 93 = 5,367
Step 1: Add 93 to both sides
72y = 5,367 + 93
72y = 5,460
Step 2: Divide both sides by 72
y = 5,460 ÷ 72
y = 75.833... → Wait! Let's check:
Actually:
5,460 ÷ 72 = ?
Let’s divide:
72 × 75 = 5,400
5,460 − 5,400 = 60
So, 75 + 60/72 = 75 + 5/6 ≈ 75.833...
But let's see if it divides evenly:
Wait — maybe I made a mistake. Let's do it carefully:
72 × 75 = 5,400
5,460 − 5,400 = 60
60 ÷ 72 = 5/6 → not a whole number?
But let's double-check original equation:
72y − 93 = 5,367
72y = 5,367 + 93 = 5,460
Now: 5,460 ÷ 72
Divide numerator and denominator by 12:
5,460 ÷ 12 = 455
72 ÷ 12 = 6
So: 455 ÷ 6 = 75.833... → Not a whole number?
Wait — perhaps there's a typo or we should keep as fraction.
But let's check:
72 × 75 = 5,400
72 × 76 = 5,472 → too big
So no integer solution. But maybe it's okay.
Wait — let me recalculate:
Is 5,460 divisible by 72?
72 × 75 = 5,400
5,460 − 5,400 = 60 → remainder 60
So y = 5,460 / 72 = 455 / 6 = 75.833...
But let's simplify:
5,460 ÷ 72 = (divide numerator and denominator by 12):
5,460 ÷ 12 = 455
72 ÷ 12 = 6
So 455/6 = 75 5/6
But since this is a pre-algebra worksheet, maybe it's supposed to be an integer.
Wait — did I add correctly?
72y = 5,367 + 93 = 5,460 → correct
Try dividing 5,460 ÷ 72:
Do long division:
72 into 546 → 7 times (7×72=504), subtract: 546−504=42
Bring down 0 → 420
72 into 420 → 5 times (5×72=360), remainder 60
So 75.833... → y = 75.833..., or 75 5/6
But let’s assume decimal is acceptable.
y ≈ 75.83
Wait — maybe I made a calculation error earlier?
Wait — let's try plugging back in:
72 × 75.833... = 72 × (75 + 5/6) = 72×75 + 72×(5/6) = 5,400 + 60 = 5,460 → yes.
So y = 5,460 / 72 = 455 / 6 = 75 5/6
But perhaps better to leave as improper fraction or decimal.
But let's move on and come back.
Wait — maybe the problem expects exact fraction.
So y = 455/6 or 75 5/6
But let's check if I copied the problem right:
"72y − 93 = 5,367"
Yes.
So y = 5,460 / 72 = 75.833...
We'll write it as y = 75.83 (approx), but better to simplify:
5,460 ÷ 72 = divide numerator and denominator by 12:
5,460 ÷ 12 = 455
72 ÷ 12 = 6 → so y = 455/6
So y = 455/6 or 75 5/6
But let's keep it as y = 75.83 for now.
Wait — actually, let's check again:
72 × 75 = 5,400
72 × 76 = 5,472 → too big
So no, not integer.
So y = 5,460 / 72 = 75.833...
But let's reduce:
GCF of 5460 and 72?
72 = 8×9 = 2³×3²
5460 ÷ 2 = 2730; ÷2=1365 → odd
So divisible by 4? 5460 ÷ 4 = 1365 → yes
5460 ÷ 4 = 1365
72 ÷ 4 = 18 → 1365 / 18
1365 ÷ 3 = 455
18 ÷ 3 = 6 → 455 / 6
So y = 455/6 → final answer.
y = 455/6 or 75 5/6
We’ll write it as y = 75.83 if decimal, but exact is 455/6
But let's keep going.
---
10) 57z + 93 = 435
Step 1: Subtract 93 from both sides
57z = 435 − 93
57z = 342
Step 2: Divide both sides by 57
z = 342 ÷ 57
Let’s compute:
57 × 6 = 342 → so z = 6
---
11) 13 + 33y = 277
Step 1: Subtract 13 from both sides
33y = 277 − 13
33y = 264
Step 2: Divide both sides by 33
y = 264 ÷ 33
33 × 8 = 264 → so y = 8
---
12) 77 + 82x = 7,867
Step 1: Subtract 77 from both sides
82x = 7,867 − 77
82x = 7,790
Step 2: Divide both sides by 82
x = 7,790 ÷ 82
Let’s divide:
82 × 90 = 7,380
7,790 − 7,380 = 410
82 × 5 = 410 → so total = 90 + 5 = 95
Check: 82 × 95 = ?
82 × 90 = 7,380
82 × 5 = 410
Total = 7,380 + 410 = 7,790 → yes!
So x = 95
---
✔ Final Answers:
1) x = 83
2) y = 37
3) y = 54
4) z = 5
5) x = 28
6) x = 18
7) y = 35
8) x = 26
9) y = 455/6 or 75 5/6 (or 75.83)
10) z = 6
11) y = 8
12) x = 95
---
Notes:
- For #9, the answer is not an integer, but that’s okay. It’s still correct.
- Always check your work by plugging back in.
Would you like me to show the verification for any of them?
Parent Tip: Review the logic above to help your child master the concept of solving two step equations worksheet pre algebra.