Respuesta :
Answer:
Step-by-step explanation:
let the number be x
(x+6)/3 =21
x+6=21*3
x+6=63
x=57
Answer:
The number is 57
Step-by-step explanation:
[tex]\frac{(n + 6) }{3}[/tex] [tex]= 21\\[/tex]
[tex]3(\frac{(n + 6) }{3})[/tex] [tex]= 21\\[/tex]
n + 6 = 63
- 6 - 6
n = 57
Hope that helps!