Question

7*(3/7х-0,3)-5*(0,2х-0,5)
с проверкой

Answer 1

7*(3/7х-0,3)-5*(0,2х-0,5)
3x-2.1-1x+2.5
2x+0.4

Answer 2

$7*( frac{3}{7}x-0,3)-5*(0,2x-0,5)=2x+0,4$