Question

0,4(x+2)-2(0,3x-0,2)=1,4-0,5(x+3)

Answer 1

Ответ: 13/3 (4 1/3)

0,4(x+2)-2(0,3x-0,2)=1,4-0,5(x+3)

0.4x+0.8-0.6x+0.4=1.4-0.5x-1.5

-0.2x+1.2=-0.1-0.5x

-0.2x+0.5x=-0.1-1.2

0.3x=-1.3

x=-1.3:0.3

x=13/3 (4 1/3)