(2/2)1-2x),2y-[y-3(y-1)]=5,3x-2(3x+1)+7x=6x-4(4-3x),

4(x-1)+3(2x+1)=10(1-2x)
4x-4+6x+3=10-20x
4x+6x+20x=10-3+4
30x=11
x=11/30
2y-[y-3(y-1)]=5
2y-y+3y-3=5
4y=8
y=2
3x-2(3x+1)+7x=6x-4(4-3x)
3x-6x-2+7=6x-14+12x
-21x=-19
x=19/21