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26-10-2017
Mathematics

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The sum of 2 number is 42 and when you switch the order the difference is 5

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crisforp crisforp

26-10-2017

So, x + y = 42 and y - x = 5;
Then, y = x + 5;
Finally, x + x + 5 = 42;
2x + 5 = 42;
2x = 37;
x = 18.5;
y = 18.5 + 5;
y = 23.5;

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