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Simplifying x2 + y2 = 20y + -99 Reorder the terms: x2 + y2 = -99 + 20y Solving x2 + y2 = -99 + 20y Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1y2' to each side of the equation. x2 + y2 + -1y2 = -99 + 20y + -1y2 Combine like terms: y2 + -1y2 = 0 x2 + 0 = -99 + 20y + -1y2 x2 = -99 + 20y + -1y2 Simplifying x2 = -99 + 20y + -1y2 Reorder the terms: 99 + x2 + -20y + y2 = -99 + 20y + -1y2 + 99 + -20y + y2 Reorder the terms: 99 + x2 + -20y + y2 = -99 + 99 + 20y + -20y + -1y2 + y2 Combine like terms: -99 + 99 = 0 99 + x2 + -20y + y2 = 0 + 20y + -20y + -1y2 + y2 99 + x2 + -20y + y2 = 20y + -20y + -1y2 + y2 Combine like terms: 20y + -20y = 0 99 + x2 + -20y + y2 = 0 + -1y2 + y2 99 + x2 + -20y + y2 = -1y2 + y2 Combine like terms: -1y2 + y2 = 0 99 + x2 + -20y + y2 = 0 The solution to this equation could not be determined.
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