2n+9=-4

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Solution for 2n+9=-4 equation: 


Simplifying
2n + 9 = -4

Reorder the terms:
9 + 2n = -4

Solving
9 + 2n = -4

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 = -4 + -9

Combine like terms: 9 + -9 = 0
0 + 2n = -4 + -9
2n = -4 + -9

Combine like terms: -4 + -9 = -13
2n = -13

Divide each side by '2'.
n = -6.5

Simplifying
n = -6.5

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