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Simplifying 3y2 + 9xy + 9 = 0 Reorder the terms: 9 + 9xy + 3y2 = 0 Solving 9 + 9xy + 3y2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + 9xy + -9 + 3y2 = 0 + -9 Reorder the terms: 9 + -9 + 9xy + 3y2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 9xy + 3y2 = 0 + -9 9xy + 3y2 = 0 + -9 Combine like terms: 0 + -9 = -9 9xy + 3y2 = -9 Add '-3y2' to each side of the equation. 9xy + 3y2 + -3y2 = -9 + -3y2 Combine like terms: 3y2 + -3y2 = 0 9xy + 0 = -9 + -3y2 9xy = -9 + -3y2 Divide each side by '9y'. x = -1y-1 + -0.3333333333y Simplifying x = -1y-1 + -0.3333333333y
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