Chris has a collection of 20 video games and will buy 4 more each month. Peter has a collection of 92 video games and will sell 5 each month. After how many months will they have the same number of video games? How many will that be? I am supposed to use system of equations to solve this. I'm not which 2 equations to use? tks.

Question

Chris has a collection of 20 video games and will buy 4 more each month.  Peter has a collection of 92 video games and will sell 5 each month.  After how many months will they have the same number of video games?  How many will that be?   I am supposed to use system of equations to solve this.  I'm not which 2 equations to use?  tks.

anonymous · Answer

They really will never have the same amount.
At the closest Chris will have 48 and Peter will have 47...that is after 7 months.
All you have to do is add 4 per month for chris 
and subtract 5 per month for peter

anonymous · Answer

try it...not to bad at all

anonymous · Answer

Chris has a collection of 20 video games and will buy 4 more each month. Peter has a collection of 92 video games and will sell 5 each month. After how many months will they have the same number of video games? How many will that be? I am supposed to use system of equations to solve this. I'm not which 2 equations to use? tks.