Melinda has $22 and plans to save $10 each week. George has $10 and plans to save $13 each week.

In how many weeks will they have the same amount saved?

Lets say Y is the amount they will save.

So Melinda's savings could be described by the equation Y=22+10X, where X is the number of weeks. The same goes to George, but his equation would be Y=10+13X.

To save the same amount, their equations must match:

22+10X = 10+13X

Solving this, one gets

12 = 3x

=> 4=x

So the answer is 4 weeks.

22+10x=10+13x

13x-10x=22-10

3x=12

x=4

Answer:4 weeks