Question

8*(0.7х-4)=2(0.2Х-3)-39

Answer 1

8*(0.7х-4)=2(0.2Х-3)-39

5,6х-32=0,4х-6-39

5,6х-0,4х=-6-39+32

5,2х=-13

х=-13:5,2

х=-2,5

Ответ:-2,5