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Simplifying
81n2 + 5 = 69
Reorder the terms:
5 + 81n2 = 69
Solving
5 + 81n2 = 69
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '-5' to each side of the equation.
5 + -5 + 81n2 = 69 + -5
Combine like terms: 5 + -5 = 0
0 + 81n2 = 69 + -5
81n2 = 69 + -5
Combine like terms: 69 + -5 = 64
81n2 = 64
Divide each side by '81'.
n2 = 0.7901234568
Simplifying
n2 = 0.7901234568
Take the square root of each side:
n = {-0.888888889, 0.888888889}
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