Respuesta :

You just need to use algebra to isolate/find n

6n-12=n+3
    +12    +12
6n=n+15
-n  -n
5n=15
---   ---
5     5
n=3

Check:
6(3)-12=3+3
18-12=6
6=6
zilola
Well, you got to try different numers to get n. So, just play around wit different numbers and see which one fits correctly
6 times what -12 is equal to 3 + that number?!
It has to be the same number
 

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