12х-{4х-20}=4{4хплюс8}

Question

12х-{4х-20}=4{4хплюс8}

Answer 1

12х-(4х-20)=4*(4х+8)
12х-4х+20=16х+32
8х+20=16х+32
8х-16х=32-20
-8х=12
х=-12\8=-3\2=-1,5

Answer 2

12x-4x+20=16x+32

8x+20=16x+32

-8x=12

x=-1.5