n+n-4=0

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Solution for n+n-4=0 equation: 


Simplifying
n + n + -4 = 0

Reorder the terms:
-4 + n + n = 0

Combine like terms: n + n = 2n
-4 + 2n = 0

Solving
-4 + 2n = 0

Solving for variable 'n'.

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

Add '4' to each side of the equation.
-4 + 4 + 2n = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 2n = 0 + 4
2n = 0 + 4

Combine like terms: 0 + 4 = 4
2n = 4

Divide each side by '2'.
n = 2

Simplifying
n = 2

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