1) 4x+5 (3-2x)=5-11x
4x+15-10x=5-11x
4x-10x+11x=5-15
5x=-10
x=-2
2) 19-2 (3x+8)=2x-37
19-6x-16=2x-37
-6x-2x=-37-19+16
-8x=-40
x=5
3) 8x+3 (7-2x)=4x+3
8x+21-6x=4x+3
2x-4x=3-21
-2x=-18
x=9
4) 23-4 (3x+8)=1-11x
23-12x+24=1-11x
-12x+11x=1-23-24
-x=-48
x=48