\frac { c } { n } = d r
Solve for d (complex solution)
\left\{\begin{matrix}d=\frac{c}{nr}\text{, }&r\neq 0\text{ and }n\neq 0\\d\in \mathrm{C}\text{, }&c=0\text{ and }r=0\text{ and }n\neq 0\end{matrix}\right.
Solve for d
\left\{\begin{matrix}d=\frac{c}{nr}\text{, }&r\neq 0\text{ and }n\neq 0\\d\in \mathrm{R}\text{, }&c=0\text{ and }r=0\text{ and }n\neq 0\end{matrix}\right.
Solve for c
c=dnr
n\neq 0
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c=drn
Multiply both sides of the equation by n.
drn=c
Swap sides so that all variable terms are on the left hand side.
nrd=c
The equation is in standard form.
\frac{nrd}{nr}=\frac{c}{nr}
Divide both sides by rn.
d=\frac{c}{nr}
Dividing by rn undoes the multiplication by rn.
c=drn
Multiply both sides of the equation by n.
drn=c
Swap sides so that all variable terms are on the left hand side.
nrd=c
The equation is in standard form.
\frac{nrd}{nr}=\frac{c}{nr}
Divide both sides by rn.
d=\frac{c}{nr}
Dividing by rn undoes the multiplication by rn.
c=drn
Multiply both sides of the equation by n.
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