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05-10-2017
Mathematics

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the sum of two numbers is 25. The difference of two numbers is 3. Find the numbers

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Аноним Аноним

08-10-2017

1) x + y = 25 ; x - y = 3 ; ( -y/-1 ) = ( 3/-1 -x/-1 ); y= x -3

2) x + ( x - 3) = 25 : 2x = 28 : 2x/2 = 28/2 : x = 14

3) ( 14 ) + y = 25 ; 14 - 14 + y = 25 - 14 ; y = 11

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