1)4(5-x)=3x-1 2)3(x-2)=x+4 3)5(x-1)=4x+3

1) 20 - 4х = 3х -1 7х = 21 х = 3 2) 3х - 6 = х + 4 2х = 10 х = 5 3) 5х - 5 = 4х + 3 х = 8

1) 4 (5-х)=3х-1 20-4х=3х-1 -4х-3х= -1-20 -7х=-21 х= -21:(-7) х=3 2) 3(х-2)=х+4 3х-6=х+4 3х-х=4+6 2х=10 х=10: 2 х=5 3) 5 (х-1)=4х+3 5х-5=4х+3 5х-4х=3+5 1х=8 х= 8: 1 х=8