Solve Qs=50+4P

$$Q s = 50 + 4 P$$

Solve for P

$$P=\frac{Qs-50}{4}$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$50+4P=Qs$$

Subtract 50 from both sides.

$$4P=Qs-50$$

Divide both sides by 4.

$$\frac{4P}{4}=\frac{Qs-50}{4}$$

Dividing by 4 undoes the multiplication by 4.

$$P=\frac{Qs-50}{4}$$

Divide Qs-50 by 4.

$$P=\frac{Qs}{4}-\frac{25}{2}$$

Solve for Q

$$\left\{\begin{matrix}Q=\frac{2\left(2P+25\right)}{s}\text{, }&s\neq 0\\Q\in \mathrm{R}\text{, }&P=-\frac{25}{2}\text{ and }s=0\end{matrix}\right.$$

Steps for Solving Linear Equation

The equation is in standard form.

$$sQ=4P+50$$

Divide both sides by s.

$$\frac{sQ}{s}=\frac{4P+50}{s}$$

Dividing by s undoes the multiplication by s.

$$Q=\frac{4P+50}{s}$$

Divide 50+4P by s.

$$Q=\frac{2\left(2P+25\right)}{s}$$