(N-2)+N+(N+2)=30

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Solution for (N-2)+N+(N+2)=30 equation: 


Simplifying
(N + -2) + N + (N + 2) = 30

Reorder the terms:
(-2 + N) + N + (N + 2) = 30

Remove parenthesis around (-2 + N)
-2 + N + N + (N + 2) = 30

Reorder the terms:
-2 + N + N + (2 + N) = 30

Remove parenthesis around (2 + N)
-2 + N + N + 2 + N = 30

Reorder the terms:
-2 + 2 + N + N + N = 30

Combine like terms: -2 + 2 = 0
0 + N + N + N = 30
N + N + N = 30

Combine like terms: N + N = 2N
2N + N = 30

Combine like terms: 2N + N = 3N
3N = 30

Solving
3N = 30

Solving for variable 'N'.

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

Divide each side by '3'.
N = 10

Simplifying
N = 10

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