# How do you solve 3.2x = 22.4?

Jun 12, 2018

$x = 7$

#### Explanation:

$3.2 x = 22.4$

$\frac{3.2 x}{3.2} = \frac{22.4}{3.2}$

$x = 7$

Jun 12, 2018

$x = 7$

#### Explanation:

You only need to divide both sides by $3.2$: the expression becomes

$\setminus \frac{3.2 x}{3.2} = \setminus \frac{22.4}{3.2}$

in the left hand side you can simply the fraction, since you're basically multiplying and dividing by the same number:

$\setminus \frac{\cancel{3.2} x}{\cancel{3.2}} = \setminus \frac{22.4}{3.2}$

and thus

$x = \setminus \frac{22.4}{3.2} = 7$