9a^2=81

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Solution for 9a^2=81 equation: 


Simplifying
9a2 = 81

Solving
9a2 = 81

Solving for variable 'a'.

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

Divide each side by '9'.
a2 = 9

Simplifying
a2 = 9

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

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