-3(2n-n+6n-8)=-81

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Solution for -3(2n-n+6n-8)=-81 equation:


Simplifying
-3(2n + -1n + 6n + -8) = -81

Reorder the terms:
-3(-8 + 2n + -1n + 6n) = -81

Combine like terms: 2n + -1n = 1n
-3(-8 + 1n + 6n) = -81

Combine like terms: 1n + 6n = 7n
-3(-8 + 7n) = -81
(-8 * -3 + 7n * -3) = -81
(24 + -21n) = -81

Solving
24 + -21n = -81

Solving for variable 'n'.

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

Add '-24' to each side of the equation.
24 + -24 + -21n = -81 + -24

Combine like terms: 24 + -24 = 0
0 + -21n = -81 + -24
-21n = -81 + -24

Combine like terms: -81 + -24 = -105
-21n = -105

Divide each side by '-21'.
n = 5

Simplifying
n = 5

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