Glos558 Glos558

10-07-2014
Mathematics

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Find two whole numbers whose sum is 60 and whose difference is 12

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kate200468 kate200468

10-07-2014

[tex]\left \{ {\big{x+y=60} \atop \big{x-y=12}} \right. \\--------\\x+x=60+12\\2x=72\ /:2\\x=36\\\\x+y=60\ \ \ \Rightarrow\ \ \ y=60-x\ \ \ \Rightarrow\ \ \ y=60-36=24\\\\Ans.\ the\ numbers:\ 36\ \ and\ \ 24[/tex]

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