X+x+n=18

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Solution for X+x+n=18 equation:


Simplifying
X + x + n = 18

Reorder the terms:
X + n + x = 18

Solving
X + n + x = 18

Solving for variable 'X'.

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

Add '-1n' to each side of the equation.
X + n + -1n + x = 18 + -1n

Combine like terms: n + -1n = 0
X + 0 + x = 18 + -1n
X + x = 18 + -1n

Add '-1x' to each side of the equation.
X + x + -1x = 18 + -1n + -1x

Combine like terms: x + -1x = 0
X + 0 = 18 + -1n + -1x
X = 18 + -1n + -1x

Simplifying
X = 18 + -1n + -1x

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