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Mathematics 8 Online
OpenStudy (anonymous):

I have trouble with these questions....can I get some help :)

OpenStudy (anonymous):

The sum of Mary and Joseph's age is 38. Five years ago, Josephs age was three quarters of Mary's age. What are their present ages ?

OpenStudy (anonymous):

$$ M+J=38\\ J-5=3(M-5)/4 $$

OpenStudy (dan815):

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