Solve for x
x=-\frac{13y}{15}-\frac{17}{3}
Solve for y
y=\frac{-15x-85}{13}
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7y-15x-20y=85
Use the distributive property to multiply -5 by 3x+4y.
-13y-15x=85
Combine 7y and -20y to get -13y.
-15x=85+13y
Add 13y to both sides.
-15x=13y+85
The equation is in standard form.
\frac{-15x}{-15}=\frac{13y+85}{-15}
Divide both sides by -15.
x=\frac{13y+85}{-15}
Dividing by -15 undoes the multiplication by -15.
x=-\frac{13y}{15}-\frac{17}{3}
Divide 85+13y by -15.
7y-15x-20y=85
Use the distributive property to multiply -5 by 3x+4y.
-13y-15x=85
Combine 7y and -20y to get -13y.
-13y=85+15x
Add 15x to both sides.
-13y=15x+85
The equation is in standard form.
\frac{-13y}{-13}=\frac{15x+85}{-13}
Divide both sides by -13.
y=\frac{15x+85}{-13}
Dividing by -13 undoes the multiplication by -13.
y=\frac{-15x-85}{13}
Divide 85+15x by -13.
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Limits
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