4x-55=2x+105 3x-(9x-70)=5(4-x)

2(x+3)=4x-20 1/4x = -10

4x-(7x-35)=17

5x-(7x-35)=6

1) 4х-55=2х+1054х-2х=105+552х=160х=802) 3х-9х+70=20-5х3х-9х+5х=20-70-х=-50х=503) 2х+6=4х-202х-4х=-20-6-2х=-262х=26х=134) 1/4х=-10х=-405) 4х-7х+35=17-3х=17-35-3х=-18х=66) 5х-7х+35=6-2х=6-35-2х=-29х=14.5