CPM Homework Help : MC2 Problem 7-86

Mimi is saving money. She already has $$30$ and earns an additional $$10$ per week. Alexis already has $$80$ , but she is not spending or saving any additional money. When will the girls have the same amount of money and how much money will they have?

Help:

Set the amount of money Mimi makes equal to the amount that Alexis makes to know when they will have the same amount of money.

More Help 1:

More Help 2:

Use what you know about solving equations with variables to find the value of $x$ .