Sure! Let’s solve each equation step by step and express the answer in the form
“x = ___” as requested.
---
1) x + 12 = 14
Subtract 12 from both sides:
→ x = 14 - 12
→
x = 2
---
2) 11 + x = 15
Subtract 11 from both sides:
→ x = 15 - 11
→
x = 4
---
3) x - 5 = 6
Add 5 to both sides:
→ x = 6 + 5
→
x = 11
---
4) 2 + x = 8
Subtract 2 from both sides:
→ x = 8 - 2
→
x = 6
---
5) x - 3 = 2
Add 3 to both sides:
→ x = 2 + 3
→
x = 5
---
6) x - 6 = 6
Add 6 to both sides:
→ x = 6 + 6
→
x = 12
---
7) 7 + x = 14
Subtract 7 from both sides:
→ x = 14 - 7
→
x = 7
---
8) 12 - x = 7
Subtract 12 from both sides:
→ -x = 7 - 12 → -x = -5
Multiply both sides by -1:
→
x = 5
*(Alternative: Think “What number subtracted from 12 gives 7?” → 5)*
---
9) 5 + x = 9
Subtract 5 from both sides:
→ x = 9 - 5
→
x = 4
---
10) x - 10 = 2
Add 10 to both sides:
→ x = 2 + 10
→
x = 12
---
11) x + 6 = 14
Subtract 6 from both sides:
→ x = 14 - 6
→
x = 8
---
12) 7 + x = 10
Subtract 7 from both sides:
→ x = 10 - 7
→
x = 3
---
13) 10 - x = 7
Subtract 10 from both sides:
→ -x = 7 - 10 → -x = -3
Multiply by -1:
→
x = 3
---
14) 8 + x = 16
Subtract 8 from both sides:
→ x = 16 - 8
→
x = 8
---
15) x - 9 = 1
Add 9 to both sides:
→ x = 1 + 9
→
x = 10
---
16) x + 10 = 14
Subtract 10 from both sides:
→ x = 14 - 10
→
x = 4
---
17) x - 3 = 8
Add 3 to both sides:
→ x = 8 + 3
→
x = 11
---
18) x + 7 = 9
Subtract 7 from both sides:
→ x = 9 - 7
→
x = 2
---
19) x + 7 = 19
Subtract 7 from both sides:
→ x = 19 - 7
→
x = 12
---
20) x + 2 = 10
Subtract 2 from both sides:
→ x = 10 - 2
→
x = 8
---
##
✔ Final Answers (in order):
1) x = 2
2) x = 4
3) x = 11
4) x = 6
5) x = 5
6) x = 12
7) x = 7
8) x = 5
9) x = 4
10) x = 12
11) x = 8
12) x = 3
13) x = 3
14) x = 8
15) x = 10
16) x = 4
17) x = 11
18) x = 2
19) x = 12
20) x = 8
---
## 📌 Key Strategy:
To solve for
x, isolate it on one side of the equation by doing the
opposite operation to what is being done to it:
- If something is
added to x →
subtract it from both sides.
- If something is
subtracted from x →
add it to both sides.
- If x is being
subtracted (like 10 - x), rearrange or use inverse operations carefully.
You’re basically “undoing” the math around x to find its value!
Let me know if you’d like a visual explanation or practice more problems 😊
Parent Tip: Review the logic above to help your child master the concept of solve for variable worksheet.