SOLUTION: If twice Betty s age in years plus Joe s age in years equals seven, how old are Betty and Joe?

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Question 1149782: If twice Betty s age in years plus Joe s age in years equals seven, how old are Betty and Joe?
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
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2*(B+y) + (J+y) = 7


2B + 2y + J + y = 7


2B + J + 3y = 7


The only reasonable solution in integer positive numbers is


    B = 1,  J = 2 years.    (y=1)   ANSWER