12-9n=75

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Solution for 12-9n=75 equation: 


Simplifying
12 + -9n = 75

Solving
12 + -9n = 75

Solving for variable 'n'.

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

Add '-12' to each side of the equation.
12 + -12 + -9n = 75 + -12

Combine like terms: 12 + -12 = 0
0 + -9n = 75 + -12
-9n = 75 + -12

Combine like terms: 75 + -12 = 63
-9n = 63

Divide each side by '-9'.
n = -7

Simplifying
n = -7

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