SOLUTION: Kristyn is 4 years younger than Mario. Three years from now, she will be two-thirds as old as Mario. Find their present ages

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Question 1104661: Kristyn is 4 years younger than Mario. Three years from now, she will be two-thirds as old as Mario. Find their present ages
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
system%28k=m-4%2Ck%2B3=%282%2F3%29%28m%2B3%29%29

3k%2B9=2m%2B6
3k-2m=-3
-
3%28m-4%29-2m=-3, substituted for k
3m-12-2m=-3
m=-3%2B12
highlight%28m=9%29
-
highlight%28k=5%29