3n+n-9=27

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Solution for 3n+n-9=27 equation: 


Simplifying
3n + n + -9 = 27

Reorder the terms:
-9 + 3n + n = 27

Combine like terms: 3n + n = 4n
-9 + 4n = 27

Solving
-9 + 4n = 27

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + 4n = 27 + 9

Combine like terms: -9 + 9 = 0
0 + 4n = 27 + 9
4n = 27 + 9

Combine like terms: 27 + 9 = 36
4n = 36

Divide each side by '4'.
n = 9

Simplifying
n = 9

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