# How do you solve and check your solutions to -3.3a=19.8?

Sep 15, 2017

$- 6$

#### Explanation:

The equation is $- 3.3 a = 19.8$.

First, we multiply both sides by 10.
$- 3.3 a \textcolor{b l u e}{\cdot} \textcolor{b l u e}{10} = 19.8 \textcolor{b l u e}{\cdot} \textcolor{b l u e}{10}$
Which is equal to
$- 33 a = 198$.
Divide both sides by $- 33$
$\frac{- 33 a}{33} = \frac{198}{-} 33$

Simplify:
$a = - 6$. ( 199-:-33=-6)