Решыть уровнение 1) 4(x-3)=x+6 2) 4-6(x+2)=3-5x 3) (5x++14)=9 решыте

4(х - 3) = х +6
4х - 12 = х + 6
4х - х = 6 + 12
3х = 18
х = 18 : 3
х = 6

4 - 6(х + 2) = 3 - 5х
4 - 6х - 12 = 3 - 5х
-6х - 8 = 3 - 5х
-6х + 5х = 3 + 8
-х = 11
х = - 11

(5х + 8) - (8х + 14) = 9
5х + 8 - 8х - 14 = 9
-3х - 6 = 9
-3х = 9 + 6
-3х = 15
х = 15 : (-3)
х = -5