SOLUTION: Twelve years ago Jane was five times as old as Anne. In three years time, Anne will be half of Jane's age. How old is each girl at the moment

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Question 1095954: Twelve years ago Jane was five times as old as Anne. In three years time, Anne will be half of Jane's age. How old is each girl at the moment
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
Twelve years ago Jane was five times as old as Anne.
J-12+=+5%28A-12%29
In three years time, Anne will be half of Jane's age.
A%2B3+=expr%281%2F2%29%28J%2B3%29
Simplify and solve this system of equations:

system%28J-12+=+5%28A-12%29%2C%0D%0AA%2B3+=expr%281%2F2%29%28J%2B3%29%29

by substitution or elimination (addition)

Edwin