Solve for y
y=\frac{x-6000}{200}
Solve for x
x=200\left(y+30\right)
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6000+200y=x
Swap sides so that all variable terms are on the left hand side.
200y=x-6000
Subtract 6000 from both sides.
\frac{200y}{200}=\frac{x-6000}{200}
Divide both sides by 200.
y=\frac{x-6000}{200}
Dividing by 200 undoes the multiplication by 200.
y=\frac{x}{200}-30
Divide x-6000 by 200.
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