Algebra 1 Addition and Subtraction

1. Solve 21 + x = 32
12
53
11
10

2. Solve 20.17 + x = 30.40
11.30
9.23
20
10.23

3. Solve x + 41 = 42
83
1
42
41

4. Solve y - 23 = 24
47
1
0
27

5. Solve 17.14 + x = 29.20
11
8
12.06
11.06

6. Solve 42 - x = 42
42
0
84
21

7. Solve 20 = y - 17
27
11
37
3

8. Solve 15.31 = x - 32.62
16
15
17.33
47.93

9. Solve 24 + x = 120
96
144
100
104

10. Solve 14.14 = 28.28 - x
14
14.14
28.14
12





Answer Key