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
