# How do you simplify 4 (2a + 2) - 17?

May 3, 2016

$8 a - 9$

#### Explanation:

ohai
I'll explain as to how

First of all, following order of operations, open the brackets first

$4 \left(2 a + 2\right) - 17$
$8 a + 8 - 17$

Now, as you see here, we multiplied 4 with both values in the brackets, as we're supposed to do since we opened the brackets, and the equation, less simplified looked like

$4 \cdot \left(2 a + 2\right) - 17$

Thus, now that we opened the brackets, lets see the like terms over here

$8 a + 8 - 17$
The like terms over here are 8 and -17, and 8a, by itself since it's the only one with a variable along with it

So now, since we have the like terms together, lets simplify more
How to? Of course, by calculating 8 - 17

$8 a - 9$