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Simplifying (x2 + 7) + y2 = 7 Reorder the terms: (7 + x2) + y2 = 7 Remove parenthesis around (7 + x2) 7 + x2 + y2 = 7 Add '-7' to each side of the equation. 7 + x2 + -7 + y2 = 7 + -7 Reorder the terms: 7 + -7 + x2 + y2 = 7 + -7 Combine like terms: 7 + -7 = 0 0 + x2 + y2 = 7 + -7 x2 + y2 = 7 + -7 Combine like terms: 7 + -7 = 0 x2 + y2 = 0 Solving x2 + y2 = 0 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 = 0 + -1y2 Combine like terms: y2 + -1y2 = 0 x2 + 0 = 0 + -1y2 x2 = 0 + -1y2 Remove the zero: x2 = -1y2 Simplifying x2 = -1y2 Combine like terms: -1y2 + y2 = 0 x2 + y2 = 0 The solution to this equation could not be determined.
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