2(0,7х-2)-5(-0,2х+4)=0 помогите пж
[tex]2(0.7x - 2) - 5( - 0.2x + 4) = 0 \\ 1.4x - 4 + x - 20 = 0 \\ 2.4x = 24 \\ x = 24 \div 2.4 \\ = 10[/tex]