Asked by Xtian Zhou

Lina is now 5 times as old as Bob, but 7 years from now, she will be 3 times as old as he will be then. How old is Lina now?
Answered by Steve
well, if their ages now are x and y, then their ages in 7 years will be x+7 and y+7.

Now just write your equations and solve them.
Answered by Xtian Zhou
Y= 5x+7

Lina is 35 years old.
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