# How do you solve 106= 228- u?

Sep 18, 2016

$u = 122$

#### Explanation:

First, what you want to do is get the numbers and variable (the letter u) on opposite sides of the equation.

Subtract 228 on both sides of the equation to get $u$ by itself like this:

$106 = 228 - u$
$- 228 - 228$

On the left side of the equation you get $- 122$ because $106 - 228 = - 122$, and on the right side you are just left with $- u$ because $228 - 228 = 0$.

Now you're left with:

$- 122 = - u$

Next, we have to divide both sides by $- 1$ to make $u$ positive. The minus signs drop out since the numerator and denominator are both negative.

$\frac{- 122}{- 1} = \frac{- u}{- 1}$

Therefore, $u = 122$

Sep 18, 2016

u=228-106
u=122