Решите уравнения пожалуйста
1)3x-5=10-x
2)5x+3(3x+7)=35
3)8y-9-4y+5=12y-4-5y
4)(x-2)(x-1)-x^=5
5)(x+3)(x+7)-(x+4)^=0
6)20x-0,2=0
7)5(x-3)-2(x-7)+7(2x+6)=7

1)3х+х=10+54х=15х=3,752)5х+3(3х+7)=355х+9х+21=355х+9х=35-2114х=14х=13)8y-9-4y+5=12y-4-5y8у-4у-12у+5у=9-5-4-8у=0у=06)20x-0,2=020х=0,2х=0,017)5(x-3)-2(x-7)+7(2x+6)=75х-15-2х+14+14х+42=75х-2х+14х=7+15-14-4217х=-34х=-2