Solve for n
n=\frac{a_{k}-1}{2}
Solve for a_k
a_{k}=2n+1
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2n+1=a_{k}
Swap sides so that all variable terms are on the left hand side.
2n=a_{k}-1
Subtract 1 from both sides.
\frac{2n}{2}=\frac{a_{k}-1}{2}
Divide both sides by 2.
n=\frac{a_{k}-1}{2}
Dividing by 2 undoes the multiplication by 2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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