Solve for k
k=\frac{n-2}{2}
Solve for n
n=2\left(k+1\right)
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-2k=2-n
Subtract n from both sides.
\frac{-2k}{-2}=\frac{2-n}{-2}
Divide both sides by -2.
k=\frac{2-n}{-2}
Dividing by -2 undoes the multiplication by -2.
k=\frac{n}{2}-1
Divide 2-n by -2.
n=2+2k
Add 2k to both sides.
Examples
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Matrix
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Simultaneous equation
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Limits
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