Answer:
x=0
Step-by-step explanation:
12x+60=8x+36+4x
12x+60=12x+36
60=36
12( x+5 ) = 4 ( 2x+9 ) + 4x
( 12x + 12×5 ) = ( 4×2x + 4×9 ) + 4x
12x + 60 = 4×2x + 36 + 4x
60 = 4×2x + 36 + 4x - 12x
60 - 36 = 4×2x - 8x
24 = 4×-6x
24÷4 = -6x
6 = -6x
x = 6÷-6
x = -1
