SOLUTION: Ali is twice as old as her sister Merl. Four years ago, she was three times as old as Merle. How old is each girl now?

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Question 1171636: Ali is twice as old as her sister Merl. Four years ago, she was three times as old as Merle. How old is each girl now?
Answer by VFBundy(438) About Me  (Show Source):
You can put this solution on YOUR website!
Merl's age now = M
Ali's age now = 2M

2M - 4 = 3(M - 4)

2M - 4 = 3M - 12

-M = -8

M = 8

Merl's age now = M = 8
Ali's age now = 2M = 2(8) = 16