Question

3/4 (x-12)=12 And 3/4y-12=12

Answer 1

3/4 (x-12)=12
3/4x - 9= 12
        +9    +9
3/4x=21
*3/4     *3/4
x= 15 3/4

and 

3/4y-12=12
       +12  +12
3/4y = 24
*3/4    *3/4
y= 18

Answer 2

Oops. I did it wrong. delete.