SOLUTION: in five years, Jose would be twice the age of Ana. Five years ago, Jose was 4 times as old as Ana. Find their present ages.

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Question 1170780: in five years, Jose would be twice the age of Ana. Five years ago, Jose was 4 times as old as Ana. Find their present ages.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
system%28j%2B5=2%28a%2B5%29%2Cj-5=4%28a-5%29%29
.
4%28a-5%29-2%28a%2B5%29=-10
4a-20-2a-10=-10
2a-20=0
highlight%28a=10%29, and you can find j.