Respuesta :

Answer:

answer is 126 and x=-1.5

Step-by-step explanation:

subtract 9 to both sides

(2x-12)•8x

subtract 2x from both sides

-12•8x

divide by 4

-3•2x

divide by 2

-1.5•x

x=-1.5

([2•-1.5]-3)•([8•-1.5]+9)

(-3-3)•(-12+9)

-6•-21=126