2n+5-9=12

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Solution for 2n+5-9=12 equation: 


Simplifying
2n + 5 + -9 = 12

Reorder the terms:
5 + -9 + 2n = 12

Combine like terms: 5 + -9 = -4
-4 + 2n = 12

Solving
-4 + 2n = 12

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 = 12 + 4

Combine like terms: -4 + 4 = 0
0 + 2n = 12 + 4
2n = 12 + 4

Combine like terms: 12 + 4 = 16
2n = 16

Divide each side by '2'.
n = 8

Simplifying
n = 8

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