Question

1)2×+15=3×-112)2(×-3)=3(2-×)3)-3(4-×)=2(×-5)

Answer 1

2х+15 = 3х-11
2х-3х= -11 -15
-х=-26
х=26

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

-3(4-х)=2(х-5)
-12 + 3х = 2х - 10
3х - 2х = -10 + 12
х = 2