Let x equal the number of books bought.
45 = 3x - 6
(This is the answer because $45 is the total price, each book is $3, and $6 is discounted from the actual price.)
Answer:
A.
2a
Step-by-step explanation:
-a + a = 0, 0 + a = a. Therefore -a + 2a = a
lets find the exact value of w
7w - 7 = 7
+7 +7
7w = 14
/7 /7
w = 2
Now let's replace w with 2
5(2) + 1 = 11
215/9 = 23.888
or
23 with a remainder of 8
I hope I helped