### Home > CC3 > Chapter 7 > Lesson 7.2.1 > Problem 7-41

7-41.

MORE OR LESS

Judy has $20 and is saving at a rate of $6 per week. Ida has $172 and is spending at a rate of $4 per week. After how many weeks will each have the same amount of money? Homework Help ✎

Write an equation using

*x*and*y*for Judy and Ida. What does*x*represent? What does*y*represent?Solve this problem using any method you choose.

The equation for Judy is *y* = 6*x* + 20.

In this equation *y* represents the money she has and *x* represents the number of weeks that have passed.

Try to write your own equation for Ida.

Try using the Equal Values Method.