Respuesta :

fmcryuvnar

Answer:

1. B

2. A

3. I

4. F

Step-by-step explanation:

1. 8x +15 = 7

minus 15 from 7

8x = -8

divide by 8

x=-1

2. 12x -42 = 18

add 42

12 x = 60

divide by 12

x=5

3. 15 +8x = 47

minus 15

8x = 32

divide by 8

x=4

4. 17 -4x =33

minus 17

-4x = 16

divide by -4

x= -4