Sure! Let’s solve each of the 12 linear equations step by step. The goal is to
isolate the variable on one side of the equation using inverse operations (addition/subtraction, multiplication/division).
---
① 3y + 8 = 14
Step 1: Subtract 8 from both sides
→ 3y = 14 - 8
→ 3y = 6
Step 2: Divide both sides by 3
→ y = 6 ÷ 3
→
y = 2
---
② 2c + 7 = 21
Step 1: Subtract 7 from both sides
→ 2c = 21 - 7
→ 2c = 14
Step 2: Divide both sides by 2
→ c = 14 ÷ 2
→
c = 7
---
③ v/8 = -2
Step 1: Multiply both sides by 8 to eliminate denominator
→ v = -2 × 8
→
v = -16
---
④ n/12 = -5 - 11
Step 1: Simplify right-hand side
→ n/12 = -16
Step 2: Multiply both sides by 12
→ n = -16 × 12
→
n = -192
---
⑤ -3k = k + 2
Step 1: Subtract k from both sides to collect like terms
→ -3k - k = 2
→ -4k = 2
Step 2: Divide both sides by -4
→ k = 2 ÷ (-4)
→
k = -1/2
---
⑥ 1 = 10 - n
Step 1: Subtract 10 from both sides
→ 1 - 10 = -n
→ -9 = -n
Step 2: Multiply both sides by -1
→
n = 9
*(Alternatively: Add n to both sides → n + 1 = 10 → n = 9)*
---
⑦ 12 + x = -32
Step 1: Subtract 12 from both sides
→ x = -32 - 12
→
x = -44
---
⑧ 10 - 2 = p/9
Step 1: Simplify left-hand side
→ 8 = p/9
Step 2: Multiply both sides by 9
→ p = 8 × 9
→
p = 72
---
⑨ 3(x - 4) = 6
Step 1: Divide both sides by 3
→ x - 4 = 6 ÷ 3
→ x - 4 = 2
Step 2: Add 4 to both sides
→ x = 2 + 4
→
x = 6
---
⑩ -9x - 9x = -9
Step 1: Combine like terms on left
→ -18x = -9
Step 2: Divide both sides by -18
→ x = -9 ÷ (-18)
→ x = 1/2
→
x = 0.5
---
⑪ x/2 - x/3 = 1
Step 1: Find a common denominator for fractions (LCM of 2 and 3 is 6)
→ (3x)/6 - (2x)/6 = 1
→ (3x - 2x)/6 = 1
→ x/6 = 1
Step 2: Multiply both sides by 6
→
x = 6
---
⑫ 5/2 - x = 3x
Step 1: Add x to both sides to move all x terms to one side
→ 5/2 = 3x + x
→ 5/2 = 4x
Step 2: Divide both sides by 4
→ x = (5/2) ÷ 4
→ x = 5/2 × 1/4
→ x = 5/8
→
x = 0.625
---
##
✔ Final Answers:
1.
y = 2
2.
c = 7
3.
v = -16
4.
n = -192
5.
k = -1/2
6.
n = 9
7.
x = -44
8.
p = 72
9.
x = 6
10.
x = 1/2
11.
x = 6
12.
x = 5/8
Let me know if you’d like to see any step explained in more detail!
Parent Tip: Review the logic above to help your child master the concept of linear equation practice worksheet.