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Simplifying x2 + y2 + -4 = 0 Reorder the terms: -4 + x2 + y2 = 0 Solving -4 + x2 + y2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + x2 + 4 + y2 = 0 + 4 Reorder the terms: -4 + 4 + x2 + y2 = 0 + 4 Combine like terms: -4 + 4 = 0 0 + x2 + y2 = 0 + 4 x2 + y2 = 0 + 4 Combine like terms: 0 + 4 = 4 x2 + y2 = 4 Add '-1y2' to each side of the equation. x2 + y2 + -1y2 = 4 + -1y2 Combine like terms: y2 + -1y2 = 0 x2 + 0 = 4 + -1y2 x2 = 4 + -1y2 Simplifying x2 = 4 + -1y2 Reorder the terms: -4 + x2 + y2 = 4 + -1y2 + -4 + y2 Reorder the terms: -4 + x2 + y2 = 4 + -4 + -1y2 + y2 Combine like terms: 4 + -4 = 0 -4 + x2 + y2 = 0 + -1y2 + y2 -4 + x2 + y2 = -1y2 + y2 Combine like terms: -1y2 + y2 = 0 -4 + x2 + y2 = 0 The solution to this equation could not be determined.
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