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Simplifying -4y2 + 2y + 2x + 20 = 0 Reorder the terms: 20 + 2x + 2y + -4y2 = 0 Solving 20 + 2x + 2y + -4y2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + 2x + 2y + -20 + -4y2 = 0 + -20 Reorder the terms: 20 + -20 + 2x + 2y + -4y2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 2x + 2y + -4y2 = 0 + -20 2x + 2y + -4y2 = 0 + -20 Combine like terms: 0 + -20 = -20 2x + 2y + -4y2 = -20 Add '-2y' to each side of the equation. 2x + 2y + -2y + -4y2 = -20 + -2y Combine like terms: 2y + -2y = 0 2x + 0 + -4y2 = -20 + -2y 2x + -4y2 = -20 + -2y Add '4y2' to each side of the equation. 2x + -4y2 + 4y2 = -20 + -2y + 4y2 Combine like terms: -4y2 + 4y2 = 0 2x + 0 = -20 + -2y + 4y2 2x = -20 + -2y + 4y2 Divide each side by '2'. x = -10 + -1y + 2y2 Simplifying x = -10 + -1y + 2y2
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