Solve for A
\left\{\begin{matrix}A=\frac{15cm}{P}\text{, }&P\neq 0\\A\in \mathrm{R}\text{, }&\left(c=0\text{ or }m=0\right)\text{ and }P=0\end{matrix}\right.
Solve for P
\left\{\begin{matrix}P=\frac{15cm}{A}\text{, }&A\neq 0\\P\in \mathrm{R}\text{, }&\left(c=0\text{ or }m=0\right)\text{ and }A=0\end{matrix}\right.
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PA=15cm
The equation is in standard form.
\frac{PA}{P}=\frac{15cm}{P}
Divide both sides by P.
A=\frac{15cm}{P}
Dividing by P undoes the multiplication by P.
AP=15cm
The equation is in standard form.
\frac{AP}{A}=\frac{15cm}{A}
Divide both sides by A.
P=\frac{15cm}{A}
Dividing by A undoes the multiplication by A.
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