domoforu20 domoforu20

05-09-2015
Mathematics

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when the sum of a number and 7 is multiplied by 4, the result is 16. what is the original number?

Respuesta :

05-09-2015

It begins like this (n + 7)4 = 16. Then, you go to this n + 7 = 4 and end up to this
n = 4 - 7 = -3

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