7n+4=81

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Solution for 7n+4=81 equation: 


Simplifying
7n + 4 = 81

Reorder the terms:
4 + 7n = 81

Solving
4 + 7n = 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 + 7n = 81 + -4

Combine like terms: 4 + -4 = 0
0 + 7n = 81 + -4
7n = 81 + -4

Combine like terms: 81 + -4 = 77
7n = 77

Divide each side by '7'.
n = 11

Simplifying
n = 11

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