So first, you want to open the parenthesis here.
So, to do that, first look at the symbol before the parenthesis.
In this case it's a -.
So when it's a -, reverse the symbol inside the parenthesis. (This is because if you don't you're subtracting 2x and then adding 8, when really you're subtracting both 2x and 8.)
So,
9x - 2x - 8
Or simplified,
7x - 8
The 10 sharpies because you get more for less because if you by 7 you get less for more with that amount.
Answer:
The anwser is 11 1/4
Step-by-step explanation:
7x + 45
(6x +42) + (x +3)= 7x + 45