332,014 views
16 votes
16 votes
Mary spent $45 at the mall. She bought lunch for $9 . She bought 3 shirts at x dollars

each. Which of the following equations could be used to find x ?

User BenB
by
2.9k points

1 Answer

15 votes
15 votes

Answer:

3x + 9 = 45

Explanation:

3 shirts at x dollars each cost 3x

lunch costs 9

altogether she spent 3x + 9

she spent 45

3x + 9 = 45

User Dario Ferrer
by
2.7k points