Solve for x
x=\frac{11-9y}{2}
Solve for y
y=\frac{11-2x}{9}
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2x=11-9y
Subtract 9y from both sides.
\frac{2x}{2}=\frac{11-9y}{2}
Divide both sides by 2.
x=\frac{11-9y}{2}
Dividing by 2 undoes the multiplication by 2.
9y=11-2x
Subtract 2x from both sides.
\frac{9y}{9}=\frac{11-2x}{9}
Divide both sides by 9.
y=\frac{11-2x}{9}
Dividing by 9 undoes the multiplication by 9.
Examples
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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