Solve for A
\left\{\begin{matrix}A=\frac{KO}{TP^{2}}\text{, }&P\neq 0\text{ and }T\neq 0\\A\in \mathrm{R}\text{, }&\left(O=0\text{ and }P=0\right)\text{ or }\left(K=0\text{ and }P=0\right)\text{ or }\left(K=0\text{ and }T=0\text{ and }P\neq 0\right)\text{ or }\left(O=0\text{ and }T=0\text{ and }P\neq 0\right)\end{matrix}\right.
Solve for K
\left\{\begin{matrix}K=\frac{ATP^{2}}{O}\text{, }&O\neq 0\\K\in \mathrm{R}\text{, }&\left(T=0\text{ or }A=0\text{ or }P=0\right)\text{ and }O=0\end{matrix}\right.
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P^{2}TA=OK
Multiply P and P to get P^{2}.
TP^{2}A=KO
The equation is in standard form.
\frac{TP^{2}A}{TP^{2}}=\frac{KO}{TP^{2}}
Divide both sides by P^{2}T.
A=\frac{KO}{TP^{2}}
Dividing by P^{2}T undoes the multiplication by P^{2}T.
P^{2}TA=OK
Multiply P and P to get P^{2}.
OK=P^{2}TA
Swap sides so that all variable terms are on the left hand side.
OK=ATP^{2}
The equation is in standard form.
\frac{OK}{O}=\frac{ATP^{2}}{O}
Divide both sides by O.
K=\frac{ATP^{2}}{O}
Dividing by O undoes the multiplication by O.
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