9-4n=-9

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Solution for 9-4n=-9 equation: 


Simplifying
9 + -4n = -9

Solving
9 + -4n = -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 + -4n = -9 + -9

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

Combine like terms: -9 + -9 = -18
-4n = -18

Divide each side by '-4'.
n = 4.5

Simplifying
n = 4.5

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