Question

Решите уравнение : (6,5-1,3x)*4/13=(0,8-3x):6/7

Answer 1

(6,5-1,3x)*4//13=(0,8-3x):6//7
2-0.4x-(14//15-3.5x)=0
16//15-0.4x+3.5x=0
16//15+3.1x=0
x=(-16//15)/3.1
x=-32//93 (~-0.344)

// - черта дроби