3x+n=18

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Solution for 3x+n=18 equation: 


Simplifying
3x + n = 18

Reorder the terms:
n + 3x = 18

Solving
n + 3x = 18

Solving for variable 'n'.

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

Add '-3x' to each side of the equation.
n + 3x + -3x = 18 + -3x

Combine like terms: 3x + -3x = 0
n + 0 = 18 + -3x
n = 18 + -3x

Simplifying
n = 18 + -3x

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