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Mathematics 20 Online
OpenStudy (anonymous):

The sum of two numbers is 51. Their difference is 13. What is the smaller of the two numbers? 18 19 20 21

OpenStudy (akshay_budhkar):

let the two numbers be x, y you got 2 equations\[x+y= 51, x-y=13\] you need to solve them and get the value of y.. Can you do that?

OpenStudy (anonymous):

19

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