deontecory6286 deontecory6286

16-10-2017
Mathematics

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Twice the sum of a number and 3 is the same as 5 subtracted from the number. find the number.

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altavistard altavistard

19-10-2017

Translating this sentence into symbols: 2(x+3) = x - 5

So 2x + 6 = x - 5 and x = -11

Check: Is 2(-11+3) = -11 -5? Is -16 = -16? YES. x =-11 is right.

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