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Simplifying
81r2 + -100g2 = 0
Reorder the terms:
-100g2 + 81r2 = 0
Solving
-100g2 + 81r2 = 0
Solving for variable 'g'.
Move all terms containing g to the left, all other terms to the right.
Add '-81r2' to each side of the equation.
-100g2 + 81r2 + -81r2 = 0 + -81r2
Combine like terms: 81r2 + -81r2 = 0
-100g2 + 0 = 0 + -81r2
-100g2 = 0 + -81r2
Remove the zero:
-100g2 = -81r2
Divide each side by '-100'.
g2 = 0.81r2
Simplifying
g2 = 0.81r2
Take the square root of each side:
g = {-0.9r, 0.9r}
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