Solve for k
\left\{\begin{matrix}k=\frac{2m}{3}-\frac{P}{12m}\text{, }&m\neq 0\\k\in \mathrm{R}\text{, }&P=0\text{ and }m=0\end{matrix}\right.
Solve for P
P=4m\left(2m-3k\right)
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P=8m^{2}-12mk
Use the distributive property to multiply 4m by 2m-3k.
8m^{2}-12mk=P
Swap sides so that all variable terms are on the left hand side.
-12mk=P-8m^{2}
Subtract 8m^{2} from both sides.
\left(-12m\right)k=P-8m^{2}
The equation is in standard form.
\frac{\left(-12m\right)k}{-12m}=\frac{P-8m^{2}}{-12m}
Divide both sides by -12m.
k=\frac{P-8m^{2}}{-12m}
Dividing by -12m undoes the multiplication by -12m.
k=\frac{2m}{3}-\frac{P}{12m}
Divide P-8m^{2} by -12m.
P=8m^{2}-12mk
Use the distributive property to multiply 4m by 2m-3k.
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