# How do you solve 7.8x - 1 = 63?

Jul 8, 2015

$x = 8.205128$ (approximate)

#### Explanation:

If $7.8 x - 1 = 63$
then
$\textcolor{w h i t e}{\text{XXXX}}$$7.8 x = 64$
and
$\textcolor{w h i t e}{\text{XXXX}}$$x = \frac{640}{78}$

which can be solved by hand (if necessary) or by using a calculator to get the answer above.