9(n-12)=81

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Solution for 9(n-12)=81 equation:


Simplifying
9(n + -12) = 81

Reorder the terms:
9(-12 + n) = 81
(-12 * 9 + n * 9) = 81
(-108 + 9n) = 81

Solving
-108 + 9n = 81

Solving for variable 'n'.

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

Add '108' to each side of the equation.
-108 + 108 + 9n = 81 + 108

Combine like terms: -108 + 108 = 0
0 + 9n = 81 + 108
9n = 81 + 108

Combine like terms: 81 + 108 = 189
9n = 189

Divide each side by '9'.
n = 21

Simplifying
n = 21

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