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14-02-2018
Mathematics

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Find two numbers whose sum is 78 and whose difference is 10

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14-02-2018

X+Y=78___1
X-Y=10____2
1+2
X+Y=78
X-Y=10
+_____
2X=88
X=44
Sub X=44 in 1
44+Y=78
Y=34
Therefore the numbers are 34,44

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