16a^2=81

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Solution for 16a^2=81 equation: 


Simplifying
16a2 = 81

Solving
16a2 = 81

Solving for variable 'a'.

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

Divide each side by '16'.
a2 = 5.0625

Simplifying
a2 = 5.0625

Take the square root of each side:
a = {-2.25, 2.25}

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