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OpenStudy (anonymous):
the sum of two mumbers is 28 and the difference is 4. what are the numbers????
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OpenStudy (anonymous):
solve the system: x+y = 28 x-y = 4
hero (hero):
2nd Hint: Add both equations together to eliminate one of the variables
OpenStudy (anonymous):
sum is 28 so x+y= 28
OpenStudy (anonymous):
let x be the bigger number let y be the smaller number
OpenStudy (anonymous):
x+y=28
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