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Simplifying x2 + y2 + x2 = 84 Reorder the terms: x2 + x2 + y2 = 84 Combine like terms: x2 + x2 = 2x2 2x2 + y2 = 84 Solving 2x2 + y2 = 84 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. 2x2 + y2 + -1y2 = 84 + -1y2 Combine like terms: y2 + -1y2 = 0 2x2 + 0 = 84 + -1y2 2x2 = 84 + -1y2 Divide each side by '2'. x2 = 42 + -0.5y2 Simplifying x2 = 42 + -0.5y2 Reorder the terms: -42 + x2 + 0.5y2 = 42 + -0.5y2 + -42 + 0.5y2 Reorder the terms: -42 + x2 + 0.5y2 = 42 + -42 + -0.5y2 + 0.5y2 Combine like terms: 42 + -42 = 0 -42 + x2 + 0.5y2 = 0 + -0.5y2 + 0.5y2 -42 + x2 + 0.5y2 = -0.5y2 + 0.5y2 Combine like terms: -0.5y2 + 0.5y2 = 0.0 -42 + x2 + 0.5y2 = 0.0 The solution to this equation could not be determined.
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