Solve for x
x=-2y-4
Solve for y
y=-\frac{x}{2}-2
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x+4=-2y
Subtract 2y from both sides. Anything subtracted from zero gives its negation.
x=-2y-4
Subtract 4 from both sides.
2y+4=-x
Subtract x from both sides. Anything subtracted from zero gives its negation.
2y=-x-4
Subtract 4 from both sides.
\frac{2y}{2}=\frac{-x-4}{2}
Divide both sides by 2.
y=\frac{-x-4}{2}
Dividing by 2 undoes the multiplication by 2.
y=-\frac{x}{2}-2
Divide -x-4 by 2.
Examples
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Matrix
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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