Solve y = x + 8 for x.

x = y - 8

Step-by-step explanation:

y = x + 8

Isolate the x

Subtract 8 from each side to do this.

y = x + 8

-8 - 8

y - 8 = x

So, x is equal to y - 8

x = y - 8

y = x + 8

So solve for x you need to get x by itself.

To do this in the given equation, subtract 8 from both sides of the equation:

y = x + 8

y-8 = x + 8 - 8

Simplify to get:

y - 8 = x

Now rewrite the equation so x is on the left side:

x = y - 8