Respuesta :

Answer:

-3

Step-by-step explanation:

8x+28=12-20-4x

8x+4x=-8-28

12x=-36

x=-3

PLS MARK AS BRAINLIEST

first, distribute the 4 and -2.
8x+28= 12-20+4x

simplify
8x+28=4x-8

subtract 4 and subtract 28 to get them on opposite sides
4x= -36

divide by 4
X= -9