Решите все. 1. 7х + 11 = 5х +3 2. 4х = 6 + 2(4х - 1) 3. 4х - 7 = 7(3х + 2) + 13 4. 17 - 5(2х + 7) = 4(5х - 3) 5. 3х - 5(6х - 7) = 5 - 6(2х + 5) 6. -3(х + 12) - 2(х - 18) = -5х

1)7х+11=5х+3
2х=-8
х=-4
2)4х=6+2(4х-1)
4х=6+8х-2
-4х=4
х=-1
3)4х-7=7(3х+2)+13
4х-7=21х+14+13
-17х=34
х=-2
4)17-5(2х+7)=4(5х-3)
17-10х-35=20х-12
-30х=6
х=5
5)3х-5(6х-7)=5-6(2х+5)
3х-30х+35=5-12х-30
-15х=-60
х=4
6)-3(х+12)-2(х-18)=-5х
-3х-36-2х+36=-5х
-3х-2х+5х=36-36, корней нет