2n=(n+9)

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Solution for 2n=(n+9) equation: 


Simplifying
2n = (n + 9)

Reorder the terms:
2n = (9 + n)

Remove parenthesis around (9 + n)
2n = 9 + n

Solving
2n = 9 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
2n + -1n = 9 + n + -1n

Combine like terms: 2n + -1n = 1n
1n = 9 + n + -1n

Combine like terms: n + -1n = 0
1n = 9 + 0
1n = 9

Divide each side by '1'.
n = 9

Simplifying
n = 9

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