Solve b/2a=4

$$\frac { b } { 2 a } = 4$$

Solve for a

$$a=\frac{b}{8}$$

$$b\neq 0$$

Steps for Solving Linear Equation

Variable a cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 2a.

$$b=8a$$

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

$$8a=b$$

Divide both sides by 8.

$$\frac{8a}{8}=\frac{b}{8}$$

Dividing by 8 undoes the multiplication by 8.

$$a=\frac{b}{8}$$

Variable a cannot be equal to 0.

$$a=\frac{b}{8}\text{, }a\neq 0$$

Solve for b

$$b=8a$$

$$a\neq 0$$

Solution Steps

Multiply both sides of the equation by 2a.

$$b=8a$$