Solve for x
x=200-4y
Solve for y
y=-\frac{x}{4}+50
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x-200=-4y
Subtract 4y from both sides. Anything subtracted from zero gives its negation.
x=-4y+200
Add 200 to both sides.
4y-200=-x
Subtract x from both sides. Anything subtracted from zero gives its negation.
4y=-x+200
Add 200 to both sides.
4y=200-x
The equation is in standard form.
\frac{4y}{4}=\frac{200-x}{4}
Divide both sides by 4.
y=\frac{200-x}{4}
Dividing by 4 undoes the multiplication by 4.
y=-\frac{x}{4}+50
Divide -x+200 by 4.
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