Hey!
First, let's write the problem.
[tex]\pi =7x-2y[/tex]
Let's switch sides to make it easier.
[tex]7x-2y=\pi [/tex]
Subtract [tex]7x[/tex] from both sides.
[tex]7x-2y-7x=\pi -7x[/tex]
[tex]-2y=\pi -7x[/tex]
Divide both sides by -2.
[tex]\frac{-2y}{-2}=\frac{\pi }{-2}-\frac{7x}{-2}[/tex]
We know that, [tex]\frac{\pi }{-2}-\frac{7x}{-2}=-\frac{\pi -7x}{2}[/tex], so let's plug that in on our final answer. That would be,
[tex]y=-\frac{\pi -7x}{2}[/tex]
Thanks!
-TetraFish
