2n+n-6=30

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Solution for 2n+n-6=30 equation: 


Simplifying
2n + n + -6 = 30

Reorder the terms:
-6 + 2n + n = 30

Combine like terms: 2n + n = 3n
-6 + 3n = 30

Solving
-6 + 3n = 30

Solving for variable 'n'.

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

Add '6' to each side of the equation.
-6 + 6 + 3n = 30 + 6

Combine like terms: -6 + 6 = 0
0 + 3n = 30 + 6
3n = 30 + 6

Combine like terms: 30 + 6 = 36
3n = 36

Divide each side by '3'.
n = 12

Simplifying
n = 12

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