10n^2-5=85

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Solution for 10n^2-5=85 equation: 


Simplifying
10n2 + -5 = 85

Reorder the terms:
-5 + 10n2 = 85

Solving
-5 + 10n2 = 85

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 + 10n2 = 85 + 5

Combine like terms: -5 + 5 = 0
0 + 10n2 = 85 + 5
10n2 = 85 + 5

Combine like terms: 85 + 5 = 90
10n2 = 90

Divide each side by '10'.
n2 = 9

Simplifying
n2 = 9

Take the square root of each side:
n = {-3, 3}

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