I'll solve each one-step equation by using inverse operations to isolate the variable.
1. 25 = y + 20
Subtract 20 from both sides: 25 - 20 = y
y = 5
2. x + 22 = 37
Subtract 22 from both sides: x = 37 - 22
x = 15
3. N + 4 = 11
Subtract 4 from both sides: N = 11 - 4
N = 7
4. g - 21 = 6
Add 21 to both sides: g = 6 + 21
g = 27
5. h - 9 = 7
Add 9 to both sides: h = 7 + 9
h = 16
6. D - 14 = 6
Add 14 to both sides: D = 6 + 14
D = 20
7. 18 = c + 5
Subtract 5 from both sides: 18 - 5 = c
c = 13
8. 2 = e - 9
Add 9 to both sides: 2 + 9 = e
e = 11
9. f + 8 = 13
Subtract 8 from both sides: f = 13 - 8
f = 5
10. d + 10 = 24
Subtract 10 from both sides: d = 24 - 10
d = 14
11. z + 4 = 11
Subtract 4 from both sides: z = 11 - 4
z = 7
12. k + 17 = 30
Subtract 17 from both sides: k = 30 - 17
k = 13
Final Answer:
1. y = 5
2. x = 15
3. N = 7
4. g = 27
5. h = 16
6. D = 20
7. c = 13
8. e = 11
9. f = 5
10. d = 14
11. z = 7
12. k = 13
Parent Tip: Review the logic above to help your child master the concept of one step linear equations worksheet.