Solve for x
x=45000-3y
Solve for y
y=-\frac{x}{3}+15000
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x+3y=45000
Multiply both sides of the equation by 600, the least common multiple of 600,200.
x=45000-3y
Subtract 3y from both sides.
x+3y=45000
Multiply both sides of the equation by 600, the least common multiple of 600,200.
3y=45000-x
Subtract x from both sides.
\frac{3y}{3}=\frac{45000-x}{3}
Divide both sides by 3.
y=\frac{45000-x}{3}
Dividing by 3 undoes the multiplication by 3.
y=-\frac{x}{3}+15000
Divide 45000-x by 3.
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