Answer :
2x - 4 = y
Rearrange...
8x - 4y = 16
2x - y = 4
Multiply the bottom by 4 to get common x's
8x - 4y = 16
8x - 4y = 16
Rearrange...
8x - 4y = 16
2x - y = 4
Multiply the bottom by 4 to get common x's
8x - 4y = 16
8x - 4y = 16