<PRE><B>Question 929180</B>
Seven years ago, Tom was 5 times as old as Betty was. Four years ago, Tom was only 3 times as old as Betty was. Find the present age of each person.

   I really need help to set up the equation. I tried ;
       T-7=5(b-7)
       T-4=3(b-4) 
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Your equations are good.
T-7=5(b-7)
T-4=3(b-4) 
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t-7 = 5b-35
t = 5b - 28
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t-4 = 3b-12
t = 3b - 8
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t = 5b - 28
t = 3b - 8
Since both RH sides = t
5b - 28 = 3b - 8
2b = 20
b = 10
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t = 22</PRE>