SOLUTION: Molly is 4 years younger than Heidi. In 3 years, Heidi will be twice as old as Molly. How old are they now?
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Question 294159: Molly is 4 years younger than Heidi. In 3 years, Heidi will be twice as old as Molly. How old are they now?
Answer by Deina(147) (Show Source): You can put this solution on YOUR website!
m = h - 4
h + 3 = 2(m + 3)
Substitute (h - 4) for m
Subtract 3 from each side:
2h - 5 = h = 5
5 - 4 = 1
m = 1
Heidi is 5
Molly is 1
& bob's your uncle!
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