How do you combine like terms in $2( a + 4) + 3a$ ?

Question

1519 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-04-07T21:30:03

Here's how I did it:

$2(a+4) + 3a$

First, we need to distribute (multiply) the $2$ $(a+4)$ :
$2 * a = 2a$

$2 * 4 = 8$

Let's put this back into the expression:
$2a + 8 + 3a$

To combine like terms, let's first highlight the like terms:
$color(red)(2a) + 8 + color(red)(3a)$

Now we just add $2a$ and $3a$ and write the final expression:
$5a + 8$

Hope this helps!

How do you combine like terms in 2( a + 4) + 3a2( a + 4) + 3a?