Solve 20/100-x=40

$$\frac { 20 } { 100 } - x = 40$$

Solve for x

$$x = -\frac{199}{5} = -39\frac{4}{5} = -39.8$$

Steps for Solving Linear Equation

Reduce the fraction \frac{20}{100} to lowest terms by extracting and canceling out 20.

$$\frac{1}{5}-x=40$$

Subtract \frac{1}{5} from both sides.

$$-x=40-\frac{1}{5}$$

Convert 40 to fraction \frac{200}{5}.

$$-x=\frac{200}{5}-\frac{1}{5}$$

Since \frac{200}{5} and \frac{1}{5} have the same denominator, subtract them by subtracting their numerators.

$$-x=\frac{200-1}{5}$$

Subtract 1 from 200 to get 199.

$$-x=\frac{199}{5}$$

Multiply both sides by -1.

$$x=-\frac{199}{5}$$