x-3\-5=3x+4\15
(x-3)*(-3)=3x+4
-3x+9=3x+4
6x=5
x=5/6
5y+4\3+y-1\4=2-5y-5\12
4*(5y+4)-3*(y-1)=5y-5
20y+16-3y+3=5y-5
12y=-24
y=-2
3y-1\4-1=5y-7\6
3*(3y-1)-12=2*(5y-7)
9y-3-12=10y-14
y=-1