81b^2-10=15

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Solution for 81b^2-10=15 equation: 


Simplifying
81b2 + -10 = 15

Reorder the terms:
-10 + 81b2 = 15

Solving
-10 + 81b2 = 15

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '10' to each side of the equation.
-10 + 10 + 81b2 = 15 + 10

Combine like terms: -10 + 10 = 0
0 + 81b2 = 15 + 10
81b2 = 15 + 10

Combine like terms: 15 + 10 = 25
81b2 = 25

Divide each side by '81'.
b2 = 0.3086419753

Simplifying
b2 = 0.3086419753

Take the square root of each side:
b = {-0.555555556, 0.555555556}

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