7th Grade Math Worksheet: Solving Equations

Explanation:
We are solving simple one-step equations of the form:
variable − number = answer
To find the variable, we add the number on the left side to both sides of the equation.

Let’s solve each one step by step:

1. x − 3 = 6
Add 3 to both sides:
x = 6 + 3 = 9

2. x − 12 = 14
Add 12 to both sides:
x = 14 + 12 = 26

3. n − 8 = 12
Add 8:
n = 12 + 8 = 20

4. a − 9 = 15
Add 9:
a = 15 + 9 = 24

5. n − 9 = 13
Add 9:
n = 13 + 9 = 22

6. b − 8 = 9
Add 8:
b = 9 + 8 = 17

7. x − 5 = 16
Add 5:
x = 16 + 5 = 21

8. n − 6 = 17
Add 6:
n = 17 + 6 = 23

Let me double-check each:
1. 9 − 3 = 6 ✔
2. 26 − 12 = 14 ✔
3. 20 − 8 = 12 ✔
4. 24 − 9 = 15 ✔
5. 22 − 9 = 13 ✔
6. 17 − 8 = 9 ✔
7. 21 − 5 = 16 ✔
8. 23 − 6 = 17 ✔

All correct.

Final Answer:
1. x = 9
2. x = 26
3. n = 20
4. a = 24
5. n = 22
6. b = 17
7. x = 21
8. n = 23