13-09-2018
Mathematics

contestada

3 times the sum of a number and 4 is the same as 18 more than the number. What is the number?

Respuesta :

13-09-2018

the answer is 3
3(n+4)=18+n
3n+12=18+n
-12 -12
3n=6+n
-n -n
2n=6
— —
2 2
n=3

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