1) - 1/4 x = - 10 2) 4x - 55 = 2х + 105
3) 2(x+3) = 4х – 20
4) 4x - (7x – 35) = 17
5) 5x - (7x - 29) = 7
6) 3х - (9x - 70) = 5 (4-x)

Question

Алгебра: 1) - 1/4 x = - 10 2) 4x - 55 = 2х + 105 3) 2(x+3) = 4х – 20 4) 4x - (7x – 35) = 17 5) 5x - (7x - 29) = 7 6) 3х - (9x - 70) = 5 (4-x)

shahriyorchikozb8ts · Answer

1) x= 40 2) 4x-2x=105+55 2x=160 x=80 3) 2x+6=4x-20 2x-4x=-20-6-2x=-26 x=13 4) 4x-7x+35=17 -3x=17-35 -3x=-18 x=6 5) 5x-7x+29=7 -2x=7-29-2x=-22 х=11 6) 3х-9х+70=20-5х -6х+5х=20-70-х=-50 х=50...