Question

Anne bought a necklace for each of her three sisters. She paid $7 for each necklace. Suppose she had $9 left. Write and solve an equation to find how much money Anne had initially to spend on each sister.

Please help I need it can't figure it out.

Answer 1

30 dollars to spend

Explanation:

7 times 3= 21

21+9=

Answer 2

7x3+9=original
you take how how much you pay for each necklace multiply by the sisters and add what you have left