jas9731 jas9731

24-10-2018
Mathematics

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The sum of 3 numbers is 49.the second number is twice the first.and the third is 1 less than the second.find the numbers

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Аноним Аноним

24-10-2018

x=10

2x=20

2x-1=19

--------------

x+2x+2x-1=49

5x=50

x=10

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