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Simplifying y2 + 4x + 2y + -15 = 0 Reorder the terms: -15 + 4x + 2y + y2 = 0 Solving -15 + 4x + 2y + y2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15' to each side of the equation. -15 + 4x + 2y + 15 + y2 = 0 + 15 Reorder the terms: -15 + 15 + 4x + 2y + y2 = 0 + 15 Combine like terms: -15 + 15 = 0 0 + 4x + 2y + y2 = 0 + 15 4x + 2y + y2 = 0 + 15 Combine like terms: 0 + 15 = 15 4x + 2y + y2 = 15 Add '-2y' to each side of the equation. 4x + 2y + -2y + y2 = 15 + -2y Combine like terms: 2y + -2y = 0 4x + 0 + y2 = 15 + -2y 4x + y2 = 15 + -2y Add '-1y2' to each side of the equation. 4x + y2 + -1y2 = 15 + -2y + -1y2 Combine like terms: y2 + -1y2 = 0 4x + 0 = 15 + -2y + -1y2 4x = 15 + -2y + -1y2 Divide each side by '4'. x = 3.75 + -0.5y + -0.25y2 Simplifying x = 3.75 + -0.5y + -0.25y2
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