Question

Simplify the following expression: (3x + 6) - 4 + (3x + 6) - 4

Answer 1

Answer: $6x-8$

Step-by-step explanation:

Let's get rid of the parenthesis' here as they are useless in this equation

$3x+6-4+3x+6-4$

Now we combine like terms

$3x+3x=6x\\6-4+6-4=-8$

Your answer will be

$6x-8$

Answer 2

(3x + 6) - 4 + (3x + 6) - 4

= 6x+4