Question 1054542
 brian is 4 years older than sam five years ago the sum of there ages was 48 how old are they now 
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B = S + 4
B-5 + S-5 = 48
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Substitute for "B" and solve for "S:
S+4-5 + S-5 = 48
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2S - 6 = 48
2S = 54
Sam's age = 27 yrs
Brian = S+4 = 31 yrs
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Cheers,
Stan H.
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