Question

2-4(2x+2)=5-4-x????????

Answer 1

2-4(2х+2)=5-4-х
2-8х-8=1-х
-8х-6=1-х
-8х+х=1+6
-7х=7
х= -1
Проверка:
2-4(2·(-1)+2)=5-4-(-1)
                   2=2