Question 329408: In 7 years, Erin will be twice as old as she was 8 years ago. how old is Erin now? Found 3 solutions by stanbon, Kassie14, Fombitz:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! In 7 years, Erin will be twice as old as she was 8 years ago.
How old is Erin now?
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Equation:
e+7= 2(e-8)
e+7 = 2e-16
e= 23 (Erin's age now.)
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Cheers,
Stan H.
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You can put this solution on YOUR website! Let be Erin's age right now.
In years, she'll be
Eight years ago she was
.
.
.
In 7 years, she'll be 30.
Eight years ago she was 15. 15(2)=30.
Verified.
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