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Simplifying
-81g2 + 9a2 = 0
Reorder the terms:
9a2 + -81g2 = 0
Solving
9a2 + -81g2 = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '81g2' to each side of the equation.
9a2 + -81g2 + 81g2 = 0 + 81g2
Combine like terms: -81g2 + 81g2 = 0
9a2 + 0 = 0 + 81g2
9a2 = 0 + 81g2
Remove the zero:
9a2 = 81g2
Divide each side by '9'.
a2 = 9g2
Simplifying
a2 = 9g2
Take the square root of each side:
a = {-3g, 3g}
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