So one easy way is to make the equation equal to only one place holder so -7x-4y=16 add 7x to both sdies -4y=16+7x multiply both sides by -1 4y=-16-7x divide both sides by 4 y=-4-7/4x subsitute values for x and get values for y exg if x=0 then y=-4 if x=1 then y=-5 3/7 etc
