SOLUTION: a man was three times as old as his son.in ten years time,the sum of their ages will be 76.how old was the man when his son was born?

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Question 255580: a man was three times as old as his son.in ten years time,the sum of their ages will be 76.how old was the man when his son was born?
Answer by CharlesG2(834) About Me  (Show Source):
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a man was three times as old as his son.in ten years time,the sum of their ages will be 76.how old was the man when his son was born?
M is man's age, S is son's age
M=3*S
M+10+S+10=76
M+S+20=76
M+S=56
3*S + S = 56 plug in 3*S for M
4*S = 56
S=14
M=3*14
M=42
42-14=28
the man was 28 when his son was born