Question

Susan has 3 times as many books as Mary. Susan has 18 books. Which equation can be solved to figure out how many books Mary has?​

Answer 1

S=Susan
M=Mary
3*m=S
3*M=18
18/3= 6
M=6

Answer 2

18 divided by 3= x

Explanation:

I don't know what your answer choices are but this would be the equation i would use to solve the problem.