Solve for C_r
C_{r}=\frac{15}{n}
n\neq 0
Solve for n
n=\frac{15}{C_{r}}
C_{r}\neq 0
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nC_{r}=15
The equation is in standard form.
\frac{nC_{r}}{n}=\frac{15}{n}
Divide both sides by n.
C_{r}=\frac{15}{n}
Dividing by n undoes the multiplication by n.
C_{r}n=15
The equation is in standard form.
\frac{C_{r}n}{C_{r}}=\frac{15}{C_{r}}
Divide both sides by C_{r}.
n=\frac{15}{C_{r}}
Dividing by C_{r} undoes the multiplication by C_{r}.
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