1. Solving equations
Mrs. Hall

2. Question 1
Y + 9 = 15
Y + 9 – 9 = 15 – 9
Y = 6

3. Question 2
A – 7 = -3
A – =
A = 4

4. Question 3
-4 = x + 3
-4 – 3 = x + 3 – 3
-7 = x
Or x = -7

5. Question 4
7p + 8p = 225
15p = 225
15p ÷ 15 = 225 ÷ 15
P = 15

6. Question 5
-10k + 2k = 64
-8k = 64
-8k ÷ -8 = 64 ÷ -8
K = -8

7. Question 6
6h – 9h = 23 + (-2)
-3h = 21
-3h ÷ -3 = 21 ÷ -3
h = -7

8. Question 7
16b - 12b =
4b = -28
4b ÷ 4 = -28 ÷ 4
b = -7

9. Question 8
19c – 20c = 59
-1c = 59
-1c ÷ -1 = 59 ÷ -1
c = -59

10. Question 9
8t – 19t = 100 – 12
-11t = 88
-11t ÷ -11 = 88 ÷ -11
t = -8

11. Question 10
20f – 13f = 112 – 28
7f = 84
7f ÷ 7 = 84 ÷ 7
f = 12

12. Question 11
19w – 17w = -58
2w = -58
2w ÷ 2 = -58 ÷ 2
W = -29

13. Question 12
6j + 10j =
16j = -32
16j ÷ 16 = -32 ÷ 16
j = -2

14. Question 13
11d – 20d = 110 – 2
-9d = 108
-9d ÷ -9 = 108 ÷ -9
d = -12

15. Question 14
7x – 10x = -42
-3x = -42
-3x ÷ -3 = -42 ÷ -3
x = 14

16. Question 15
13g – 5g = -56
8g = -56
8g ÷ 8 = -56 ÷ 8
g = -7

17. Question 16
7x – 18x = -99
-11x = -99
-11x ÷ -11 = -99 ÷ -11
X = 9

18. Question 17
8v = 15 – 31
8v = -16
8v ÷ 8 = -16 ÷ 8
V = -2

19. Question 18
8j – 14j = -24
-6j = -24
-6j ÷ -6 = -24 ÷ -6
j = 4

20. Question 19
10r + 15r =
25r = 125
25r ÷ 25 = 125 ÷ 25
r = 5

21. Question 20
16y + 10y = 100 – 48
26y = 52
26y ÷ 26 = 52 ÷ 26
Y = 2