Solve for a
a=\frac{14combination(3,n)}{3}
combination(3,n)\neq 0
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\frac{1}{combination(3,n)}a=\frac{14}{3}
The equation is in standard form.
\frac{\frac{1}{combination(3,n)}acombination(3,n)}{1}=\frac{\frac{14}{3}combination(3,n)}{1}
Divide both sides by \left(combination(3,n)\right)^{-1}.
a=\frac{\frac{14}{3}combination(3,n)}{1}
Dividing by \left(combination(3,n)\right)^{-1} undoes the multiplication by \left(combination(3,n)\right)^{-1}.
a=\frac{14combination(3,n)}{3}
Divide \frac{14}{3} by \left(combination(3,n)\right)^{-1}.
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