# How do you simplify –15 – (–3) + 4?

Jul 9, 2018

$- 8$

#### Explanation:

$- 15 - \left(- 3\right) + 4$

First, we know that two negative signs next to each other mean a positive sign:
$- 15 + 3 + 4$

Now add from left to right:
$- 12 + 4$

$= - 8$

Hope this helps!

Jul 9, 2018

$- 8$

#### Explanation:

One of the key realizations is that when we subtract a negative number, we are adding the positive version of that number.

With this in mind, we can rewrite our expression as

$- 15 + 3 + 4$, which simplifies to

$- 15 + 7$, or $7 - 15 = - 8$

Hope this helps!