Solve 30=x/b

$$30 = \frac { x } { b }$$

Solve for b

$$b=\frac{x}{30}$$

$$x\neq 0$$

Steps for Solving Linear Equation

Variable b cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by b.

$$30b=x$$

Divide both sides by 30.

$$\frac{30b}{30}=\frac{x}{30}$$

Dividing by 30 undoes the multiplication by 30.

$$b=\frac{x}{30}$$

Variable b cannot be equal to 0.

$$b=\frac{x}{30}\text{, }b\neq 0$$

Solve for x

$$x=30b$$

$$b\neq 0$$

Solution Steps

Multiply both sides of the equation by b.

$$30b=x$$

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

$$x=30b$$