Solve 2pir+2x=300

$$2 \pi r+2x = 300$$

Solve for r

$$r=-\frac{x-150}{\pi }$$

Steps for Solving Linear Equation

Subtract 2x from both sides.

$$2\pi r=300-2x$$

Divide both sides by 2\pi .

$$\frac{2\pi r}{2\pi }=\frac{300-2x}{2\pi }$$

Dividing by 2\pi undoes the multiplication by 2\pi .

$$r=\frac{300-2x}{2\pi }$$

Divide 300-2x by 2\pi .

$$r=\frac{150-x}{\pi }$$

Solve for x

$$x=150-\pi r$$

Steps for Solving Linear Equation

Subtract 2\pi r from both sides.

$$2x=300-2\pi r$$

Divide both sides by 2.

$$\frac{2x}{2}=\frac{300-2\pi r}{2}$$

Dividing by 2 undoes the multiplication by 2.

$$x=\frac{300-2\pi r}{2}$$

Divide 300-2\pi r by 2.

$$x=150-\pi r$$