Solve for x
x=4-3y
Solve for y
y=\frac{4-x}{3}
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25x=100-75y
Subtract 75y from both sides.
\frac{25x}{25}=\frac{100-75y}{25}
Divide both sides by 25.
x=\frac{100-75y}{25}
Dividing by 25 undoes the multiplication by 25.
x=4-3y
Divide 100-75y by 25.
75y=100-25x
Subtract 25x from both sides.
\frac{75y}{75}=\frac{100-25x}{75}
Divide both sides by 75.
y=\frac{100-25x}{75}
Dividing by 75 undoes the multiplication by 75.
y=\frac{4-x}{3}
Divide 100-25x by 75.
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