Chris has a collection of 20 baseball cards and Kyle has collection of 40 baseball cards. Chris is adding 3 baseball cards per month to his collection while Kyle is adding one baseball card per month to his collection. After how many months will Chris and Kyle have the same number of baseball cards?

Question

Chris has a collection of 20 baseball cards and Kyle has collection of 40 baseball cards. Chris is adding 3 baseball cards per month to his collection while Kyle is adding one baseball card per month to his collection.  After how many months will Chris and Kyle have the same number of baseball cards?

Reiny · Answer

Chris: 20 + 3n Kyle : 40 + n they are equal when 20+3n = 40+n solve for n