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Simplifying
81b2 + -64c2 = 0
Solving
81b2 + -64c2 = 0
Solving for variable 'b'.
Move all terms containing b to the left, all other terms to the right.
Add '64c2' to each side of the equation.
81b2 + -64c2 + 64c2 = 0 + 64c2
Combine like terms: -64c2 + 64c2 = 0
81b2 + 0 = 0 + 64c2
81b2 = 0 + 64c2
Remove the zero:
81b2 = 64c2
Divide each side by '81'.
b2 = 0.7901234568c2
Simplifying
b2 = 0.7901234568c2
Take the square root of each side:
b = {-0.888888889c, 0.888888889c}
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