Question

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

Answer 1

`8a - 9`

Explanation:

ohai
I'll explain as to how

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

`4(2a + 2) - 17`
`8a + 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*(2a + 2) - 17`

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

`8a + 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

`8a - 9`

Aaaaand..... that's our answer