# How do you solve (18-x)/-9=-5?

Oct 25, 2016

$x = - 27$

#### Explanation:

The first step is to multiply both sides of the equation by - 9 to eliminate the fraction.

${\cancel{- 9}}^{1} \times \frac{18 - x}{\cancel{- 9}} ^ 1 = \left(- 9 \times - 5\right)$

$\Rightarrow 18 - x = 45$

subtract 18 from both sides.

$\cancel{18} \cancel{- 18} - x = 45 - 18$

$\Rightarrow - x = 27$

multiply both sides by - 1.

$- 1 \times - x = - 1 \times 27$

$\Rightarrow x = - 27 \text{ is the solution}$