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Simplifying
9n2 + 10 = 90
Reorder the terms:
10 + 9n2 = 90
Solving
10 + 9n2 = 90
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '-10' to each side of the equation.
10 + -10 + 9n2 = 90 + -10
Combine like terms: 10 + -10 = 0
0 + 9n2 = 90 + -10
9n2 = 90 + -10
Combine like terms: 90 + -10 = 80
9n2 = 80
Divide each side by '9'.
n2 = 8.888888889
Simplifying
n2 = 8.888888889
Take the square root of each side:
n = {-2.98142397, 2.98142397}
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