2n+(-9)=

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


Simplifying
2n + (-9) = 0
2n + -9 = 0

Reorder the terms:
-9 + 2n = 0

Solving
-9 + 2n = 0

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 = 0 + 9

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

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

Divide each side by '2'.
n = 4.5

Simplifying
n = 4.5

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