<PRE><B>Question 295225</B>
j + 13 = 3s
(j-6) - 14 = 2s
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j = 3s - 13
j = (2s + 14) + 6
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3s - 13 = 2s + 20
s = 33
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j = 99 - 13
j = 86
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so john is 86 and his son is 33</PRE>