2n-9=9

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Solution for 2n-9=9 equation: 


Simplifying
2n + -9 = 9

Reorder the terms:
-9 + 2n = 9

Solving
-9 + 2n = 9

Solving for variable 'n'.

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

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

Combine like terms: -9 + 9 = 0
0 + 2n = 9 + 9
2n = 9 + 9

Combine like terms: 9 + 9 = 18
2n = 18

Divide each side by '2'.
n = 9

Simplifying
n = 9

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