Question

Marco went to the library. He checked out 6 movies. The rest of the items he checked out were books. He checked out a total of 17 items. How many books did he check out? Use the variable b to represent the number of books Marco checked out. Which equation represents this situation and its solution?
b + 23 = 17; b = 6
23b = 17; b = 6
6b = 17; b = 23
b + 6 = 17; b = 11

Answer 1

D, the fourth one.
b + 6 = 17; b = 11

Answer 2

b+6= 17; b =11 because we know that b= number of books bought and we know that he had a total of 17 items and he only bought 6 movies so you could also say b= 17-6