SOLUTION: B1 is 3 years older than B2. In 5 years, the sum of their ages will be 37. How old is B2 now?

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Question 1115465: B1 is 3 years older than B2. In 5 years, the sum of their ages will be 37. How old is B2 now?
Answer by josgarithmetic(39617) About Me  (Show Source):
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Ages B+3 and B.

%28B%2B3%2B5%29%2B%28B%2B5%29=37
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2B%2B13=37
2B=24
highlight_green%28B=B%5B2%5D=12%29










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(as two variables)
y and x.
y=x%2B3
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y%2B5%2Bx%2B5=37
y%2Bx=37-10
y%2Bx=27
x%2B3%2Bx=27
2x=24
x=12