SOLUTION: Three years ago Juma was three times as old as Ali.In two years time the sum of their ages will be 62.Determine their present ages.

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Question 1103197: Three years ago Juma was three times as old as Ali.In two years time the sum of their ages will be 62.Determine their present ages.
Answer by josgarithmetic(39626) About Me  (Show Source):
You can put this solution on YOUR website!
j and a

system%28j-3=3%28a-3%29%2Cj%2B2%2Ba%2B2=62%29
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j%2Ba=58

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j-3=3a-9
j-3a=-6
3a-j=6

system%28a%2Bj=58%2C3a-j=6%29
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If you add corresponding members, this eliminates j.
4a=58%2B6
4a=64
highlight%28a=16%29-----------Ali
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highlight%28j=42%29----------Juma