Solve for x
x=\frac{10y}{9}
Solve for y
y=\frac{9x}{10}
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36x=36y+4y
Add 4y to both sides.
36x=40y
Combine 36y and 4y to get 40y.
\frac{36x}{36}=\frac{40y}{36}
Divide both sides by 36.
x=\frac{40y}{36}
Dividing by 36 undoes the multiplication by 36.
x=\frac{10y}{9}
Divide 40y by 36.
36x-4y-36y=0
Subtract 36y from both sides.
36x-40y=0
Combine -4y and -36y to get -40y.
-40y=-36x
Subtract 36x from both sides. Anything subtracted from zero gives its negation.
\frac{-40y}{-40}=-\frac{36x}{-40}
Divide both sides by -40.
y=-\frac{36x}{-40}
Dividing by -40 undoes the multiplication by -40.
y=\frac{9x}{10}
Divide -36x by -40.
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