If x and y are these numbers then we have x+y=15 and x-y=7. So by adding the two equations we have 2x=22 or x=11 and thus, 11+y=15 or y=4.
Thomas T.
asked • 09/10/21the sum of two numbers is 15 and the difference is 7
i only nede to numbers and it all so neds to not be in leters but in numbers the sum is 15 and the difference is 7
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