Question

8x + 4y = 2 solve for y

Answer 1

The quickest way to solve this is 

8(0)+4y=2 (since we are looking for y we are going to put 0 in the x intercept) with that all we have left is this

4y=2 next we divide 4 on both sides in order to get y by itself. 
2/4=0.5
y=0.5 or 1/2.

Answer 2

Move all items that don’t contain x and solve.
X= -y/2 + 1/4