tati251 tati251

25-07-2017
Mathematics

contestada

The sum of nine and three times a number is 57 find the number and write an equation

Respuesta :

Banabanana Banabanana

25-07-2017

Let "n" be a number

9 + 3n = 57
3n = 57 - 9
3n = 48
n = 48/3
n = 16

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