suphanee51 suphanee51

16-09-2017
Mathematics

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the absolute value of the sum of -7 and twice a number is 23 . find the number

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Аноним Аноним

16-09-2017

the absolute value of a number is the opposite so -7 = 7

23- 7 = 16 * 2= 32+ 7= 39.

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