-7n+4(1-n)=81

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Solution for -7n+4(1-n)=81 equation:


Simplifying
-7n + 4(1 + -1n) = 81
-7n + (1 * 4 + -1n * 4) = 81
-7n + (4 + -4n) = 81

Reorder the terms:
4 + -7n + -4n = 81

Combine like terms: -7n + -4n = -11n
4 + -11n = 81

Solving
4 + -11n = 81

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + -11n = 81 + -4

Combine like terms: 4 + -4 = 0
0 + -11n = 81 + -4
-11n = 81 + -4

Combine like terms: 81 + -4 = 77
-11n = 77

Divide each side by '-11'.
n = -7

Simplifying
n = -7

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