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Simplifying x + y2 + -4y + 9 = 0 Reorder the terms: 9 + x + -4y + y2 = 0 Solving 9 + x + -4y + y2 = 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 + x + -4y + -9 + y2 = 0 + -9 Reorder the terms: 9 + -9 + x + -4y + y2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + x + -4y + y2 = 0 + -9 x + -4y + y2 = 0 + -9 Combine like terms: 0 + -9 = -9 x + -4y + y2 = -9 Add '4y' to each side of the equation. x + -4y + 4y + y2 = -9 + 4y Combine like terms: -4y + 4y = 0 x + 0 + y2 = -9 + 4y x + y2 = -9 + 4y Add '-1y2' to each side of the equation. x + y2 + -1y2 = -9 + 4y + -1y2 Combine like terms: y2 + -1y2 = 0 x + 0 = -9 + 4y + -1y2 x = -9 + 4y + -1y2 Simplifying x = -9 + 4y + -1y2
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