1/4x-1/2=3/4
x-2=3
x=5
1/2x-7=9x-2/6
3x-42=9x-2
6x=-40
x=-20/3
1/5x-1/2(3-2x)=1
2x-5(3-2x)=10
2x-15+10x=10
12x=25
x=25/12