Question

x/2-x/5=3
y/4=y-1
1-3y/5=0

Answer 1

10x/2-5x/5=10×3
5x-2x=30
3x=30
x=30/3=10
2)4y/4=4y-4
y=4y-4
y-4y=-4
-3y=-4
y=4/3
3)5×(1-3y)/5=5×0
1-3y=0
-3y=-1
y=1/3