SOLUTION: Ten years ago, Alvin was half the age of his brother. Alvin is now 22. How old is his brother now?

Question 703143: Ten years ago, Alvin was half the age of his brother. Alvin is now 22. How old is his brother now?

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Ten years ago, Alvin was half the age of his brother. Alvin is now 22. How old is his brother now?
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Equations:
A-10 = (1/2)(B-10)
A = 22
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Substitute for "A" and solve for "B":
22-10 = (1/2)(B-10)
12 = (1/2)(B-10)
24 = B-10
B = 34 (brother's age now)
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Cheers,
Stan H.
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