SOLUTION: Lisa is three times as old as Maggie. The difference in their ages is 12 years. What are their ages?

Question 975576: Lisa is three times as old as Maggie. The difference in their ages is 12 years. What are their ages?

Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

let Lisa's age be and Maggie's age
given:
Lisa is three times as old as Maggie.
..........eq.1

The difference in their ages is years.
.........eq.2.....substitute from eq.1

now, go to eq.1 and find
..........eq.1

so, Lisa is years old and Maggie is years old

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