# How do you solve 28.5 + 18x = 16.5 + 20x?

Oct 27, 2016

You add and/or subtract the same from both sides until you get the $x$'s on one side and the numbers on the other.

#### Explanation:

Subtract $18 x$ from both sides:
$28.5 + \cancel{18 x} - \cancel{18 x} = 16.5 + 20 x - 18 x$

Subtract $16.5$ from both sides:
$28.5 - 16.5 = \cancel{16.5} - \cancel{16.5} + \left(20 - 18\right) x$
$12 = 2 x \to x = \frac{12}{2} = 6$