Question

How do you solve `106= 228- u`?

Answer 1

`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.

`(-122)/(-1) = (-u)/(-1)`

Therefore, `u=122`

Answer 2

u=228-106
u=122