Solve for p (complex solution)
\left\{\begin{matrix}p=-\frac{2t-r}{5s}\text{, }&s\neq 0\\p\in \mathrm{C}\text{, }&r=2t\text{ and }s=0\end{matrix}\right.
Solve for p
\left\{\begin{matrix}p=-\frac{2t-r}{5s}\text{, }&s\neq 0\\p\in \mathrm{R}\text{, }&r=2t\text{ and }s=0\end{matrix}\right.
Solve for r
r=5ps+2t
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5sp+2t=r
Swap sides so that all variable terms are on the left hand side.
5sp=r-2t
Subtract 2t from both sides.
\frac{5sp}{5s}=\frac{r-2t}{5s}
Divide both sides by 5s.
p=\frac{r-2t}{5s}
Dividing by 5s undoes the multiplication by 5s.
5sp+2t=r
Swap sides so that all variable terms are on the left hand side.
5sp=r-2t
Subtract 2t from both sides.
\frac{5sp}{5s}=\frac{r-2t}{5s}
Divide both sides by 5s.
p=\frac{r-2t}{5s}
Dividing by 5s undoes the multiplication by 5s.
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