Question

Ayúdenme es una imagen ​

Answer 1

Explicación paso a paso:

a) 4x + 8 = 3x - 12

4x - 3x = -12 - 8

x = - 20

b) 8x + 4 = - 6x + 7

8x + 6x = 7 - 4

14x = 3

x = 3/14

c) 10x - 9 = - 15

10x = - 15 +9

10x = - 6

x = - 6/10

x = - 3/5

d) 6x + 8 = - 2x - 12

6x + 2x = - 12 - 8

8x = - 20

x = - 20/8

x = - 5/2