Question

Решите уравнение 1) 5x+8=3(2x-4)-x 2)4,1(2-3x)=12-(12,3x+3,8)

Answer 1

1) 5х+8=3(2х-4)-х
5х+8=3•2х-3•4)-х
5х+8=6х-12-х
5х-6х+х=-8-12
0х=-20
х=-20:0
2)4,1(2-3х)=12-(12,3х+3,8)
4,1•2-4,1•3х=12-12,3х-3,8
8,2-12,3х=12-12,3х-3,8
-12,3х+12,3х=-8,2+12-3,8
0х=0
х=0:0
х=0