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Simplifying y2 + 18x + 81 = 0 Reorder the terms: 81 + 18x + y2 = 0 Solving 81 + 18x + y2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-81' to each side of the equation. 81 + 18x + -81 + y2 = 0 + -81 Reorder the terms: 81 + -81 + 18x + y2 = 0 + -81 Combine like terms: 81 + -81 = 0 0 + 18x + y2 = 0 + -81 18x + y2 = 0 + -81 Combine like terms: 0 + -81 = -81 18x + y2 = -81 Add '-1y2' to each side of the equation. 18x + y2 + -1y2 = -81 + -1y2 Combine like terms: y2 + -1y2 = 0 18x + 0 = -81 + -1y2 18x = -81 + -1y2 Divide each side by '18'. x = -4.5 + -0.05555555556y2 Simplifying x = -4.5 + -0.05555555556y2
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