How can (1/4)x-3=(1/2)x+8 be setup as a system of equations?

4y + 4x = −12
2y + 2x = 16

4y − x = −12
2y − x = 16

4y + x = −12
2y + x = 16

4y − 4x = −12
2y − 2x = 16

1 answer

Why make things complicated ?
Just solve it ....

(1/4)x-3=(1/2)x+8
times 4, the LCD
x - 12 = 2x + 32
-x = 44
x = -44

Where does y come from in the pairs of equations?