Найдите корень уравнения:
1. -7х + 9(2+х) = -4х + 3
2. -х + 4(7 - х) = -7х + 5
3. х - 3(1 - 7х) = 2х+2
4. -9х - 9(4-х) = 3х+3
5. 5х - 6(5 +2х) = х - 2
6. 9х - 2 (-1 - х) = х - 5
7. 6х - 8 (-7 + 9х) = -2х - 8

СРОЧНО, ПОМОГИТЕ!!!!!

1.-7х+18+9х=-4х+3 2х+18=-4х+3 2х+4х=3-18 6х=-15 х=-2 1/22.-5х+28=-7х+5 2х=-23 х=-11 1/23.22х-3=2х+2 20х=5 х=1/44.-9х-36+9х=3х+3 -36=3х+3 -3х=39 х=-13 5.5х-30-12х=х-2 -7х-х=-2+30 -8х=28 х=-7/2 х=-3 1/26.9х+2+2х=х-5 11х-х=-5-2 10х=-7 х=-7/107.6х+56-72х=-2х-8 -66х+2х=-8-56 -64х=-64 х=1