\[2x-4y=8\]

Solving for y. Want to solve for x instead?
1
Factor out the common term 22.
2(x2y)=82(x-2y)=8

2
Divide both sides by 22.
x2y=82x-2y=\frac{8}{2}

3
Simplify  82\frac{8}{2}  to  44.
x2y=4x-2y=4

4
Subtract xx from both sides.
2y=4x-2y=4-x

5
Divide both sides by 2-2.
y=4x2y=-\frac{4-x}{2}

Done

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