Question

решите уравнение.
4(0.2x-7)-5(0.3x+6)=5

Answer 1

4(0,2х-7)-5(0,3х+6)=5
0,8х-28-1,5х-30=5
0,8х-1,5х=5+30+28
-0,7х=63
х=63:(-0,7)
х=-90

Answer 2

4(0.2x-7)-5(0.3x+6)=5
0,8х-28-1,5х-30=5
0,8х-1,5х=5+28+30
-0,7х=63
х=-90