81-64v^2=0

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Solution for 81-64v^2=0 equation: 


Simplifying
81 + -64v2 = 0

Solving
81 + -64v2 = 0

Solving for variable 'v'.

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

Add '-81' to each side of the equation.
81 + -81 + -64v2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + -64v2 = 0 + -81
-64v2 = 0 + -81

Combine like terms: 0 + -81 = -81
-64v2 = -81

Divide each side by '-64'.
v2 = 1.265625

Simplifying
v2 = 1.265625

Take the square root of each side:
v = {-1.125, 1.125}

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