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Simplifying x2 + y2 = 8x + 4y + -20 Reorder the terms: x2 + y2 = -20 + 8x + 4y Solving x2 + y2 = -20 + 8x + 4y Solving for variable 'x'. Reorder the terms: 20 + -8x + x2 + -4y + y2 = -20 + 8x + 4y + 20 + -8x + -4y Reorder the terms: 20 + -8x + x2 + -4y + y2 = -20 + 20 + 8x + -8x + 4y + -4y Combine like terms: -20 + 20 = 0 20 + -8x + x2 + -4y + y2 = 0 + 8x + -8x + 4y + -4y 20 + -8x + x2 + -4y + y2 = 8x + -8x + 4y + -4y Combine like terms: 8x + -8x = 0 20 + -8x + x2 + -4y + y2 = 0 + 4y + -4y 20 + -8x + x2 + -4y + y2 = 4y + -4y Combine like terms: 4y + -4y = 0 20 + -8x + x2 + -4y + y2 = 0 The solution to this equation could not be determined.
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