4x-3(20-x)=60-5(9-x)
4x-60+3x=60-45+5x
4x+3x-5x=60-45+60
2x=75
x=75÷2
x=37.5
4(2x-7)-2(x-1)=3x-5
8x-28-2x+2=3x-5
8x-2x-3x=28-2-5
3x=21
x=21÷3
x=7