-3(1-4n)=81

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Solution for -3(1-4n)=81 equation: 


Simplifying
-3(1 + -4n) = 81
(1 * -3 + -4n * -3) = 81
(-3 + 12n) = 81

Solving
-3 + 12n = 81

Solving for variable 'n'.

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

Add '3' to each side of the equation.
-3 + 3 + 12n = 81 + 3

Combine like terms: -3 + 3 = 0
0 + 12n = 81 + 3
12n = 81 + 3

Combine like terms: 81 + 3 = 84
12n = 84

Divide each side by '12'.
n = 7

Simplifying
n = 7

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