Solve x-90%=4

$$x - 90 \% = 4$$

Solve for x

$$x = \frac{49}{10} = 4\frac{9}{10} = 4.9$$

Steps for Solving Linear Equation

Reduce the fraction \frac{90}{100} to lowest terms by extracting and canceling out 10.

$$x-\frac{9}{10}=4$$

Add \frac{9}{10} to both sides.

$$x=4+\frac{9}{10}$$

Convert 4 to fraction \frac{40}{10}.

$$x=\frac{40}{10}+\frac{9}{10}$$

Since \frac{40}{10} and \frac{9}{10} have the same denominator, add them by adding their numerators.

$$x=\frac{40+9}{10}$$

Add 40 and 9 to get 49.

$$x=\frac{49}{10}$$