Answer:
x= 8
Step-by-step explanation:
12x - 8 = 3x + 64
12x - 3x = 64 + 8
9x = 72
x= 72÷9
x = 8
x=8
12x-8=3x+64 ( collect like terms)
=12x-3x=64+8 (add or subs like terms)
=9x=72 (divided both sign by 9)
=9x/9=72/9=8
