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Simplifying
81n2 + 7 = 11
Reorder the terms:
7 + 81n2 = 11
Solving
7 + 81n2 = 11
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '-7' to each side of the equation.
7 + -7 + 81n2 = 11 + -7
Combine like terms: 7 + -7 = 0
0 + 81n2 = 11 + -7
81n2 = 11 + -7
Combine like terms: 11 + -7 = 4
81n2 = 4
Divide each side by '81'.
n2 = 0.04938271605
Simplifying
n2 = 0.04938271605
Take the square root of each side:
n = {-0.222222222, 0.222222222}
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