What is the equation?

Question

James has $100 in his bank account and withdraws $5 each week. William has $20 in his account and deposits $5 each week.

Answer 1

I'm not sure what your question is, but I am guessing that you want to know when James and William have the same amount of money.

 

Here is a solution to that question:

 

Let x = number of weeks that it takes until they have the same amount of money

 

After x weeks, James has 100 - 5x dollars and William has 20 + 5x dollars.

 

So, we need to solve the equation 100 - 5x = 20 + 5x

 

                                                        80 = 10x

 

                                                         x = 8 weeks