Solve for x
x=\frac{91-2y}{11}
Solve for y
y=\frac{91-11x}{2}
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11x+y+y=91
Combine 10x and x to get 11x.
11x+2y=91
Combine y and y to get 2y.
11x=91-2y
Subtract 2y from both sides.
\frac{11x}{11}=\frac{91-2y}{11}
Divide both sides by 11.
x=\frac{91-2y}{11}
Dividing by 11 undoes the multiplication by 11.
11x+y+y=91
Combine 10x and x to get 11x.
11x+2y=91
Combine y and y to get 2y.
2y=91-11x
Subtract 11x from both sides.
\frac{2y}{2}=\frac{91-11x}{2}
Divide both sides by 2.
y=\frac{91-11x}{2}
Dividing by 2 undoes the multiplication by 2.
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