elizaamath1681 elizaamath1681

02-02-2018
Mathematics

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Problem page the sum of two numbers is 67 and the difference is 11 . what are the numbers?

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evgeniylevi evgeniylevi

05-02-2018

Try this:
1. sum of numbers is x+y=67, the difference between them is x-y=11
2. it is possible to make up and resolve the system:
[tex] \left \{ {{x+y=67} \atop {x-y=11}} \right. \ =\ \textgreater \ \ \left \{ {{x=39} \atop {y=28}} \right. [/tex]

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