Solve for y
y=\frac{-x-1}{2}
Solve for x
x=-2y-1
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2y=-1-x
Subtract x from both sides.
2y=-x-1
The equation is in standard form.
\frac{2y}{2}=\frac{-x-1}{2}
Divide both sides by 2.
y=\frac{-x-1}{2}
Dividing by 2 undoes the multiplication by 2.
x=-1-2y
Subtract 2y from both sides.
Examples
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Matrix
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Simultaneous equation
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Integration
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Limits
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