Respuesta :

george3262

Answer:

look below

Step-by-step explanation:

x - 5 = 7

x = 12

.................

x - 8 = 20

x = 28

.................

x + 2 = -1

x = -3

................

x - 9 = 12

x = 21

...............

x + -6 = -7

x = -1

.................

x - 8 = -3

x = 5

..................

-7 - x = -9

-7 = x - 9

2 = x