9=-3-n

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Solution for 9=-3-n equation: 


Simplifying
9 = -3 + -1n

Solving
9 = -3 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
9 + n = -3 + -1n + n

Combine like terms: -1n + n = 0
9 + n = -3 + 0
9 + n = -3

Add '-9' to each side of the equation.
9 + -9 + n = -3 + -9

Combine like terms: 9 + -9 = 0
0 + n = -3 + -9
n = -3 + -9

Combine like terms: -3 + -9 = -12
n = -12

Simplifying
n = -12

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