SOLUTION: Zelma is 21 years older than her son. Two years ago she was four times his age. How Old is Zelma and her son?

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Question 939073: Zelma is 21 years older than her son. Two years ago she was four times his age. How
Old is Zelma and her son?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
x the son's age
(x+21) -2 = 4(x-2)
x + 19 = 4x - 8
27 = 3x
9 = x, the son's age. Zelma is 30 9%2B21
And...checking
2years ago...
28 = 4(7)