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Simplifying x2 + 4y2 + 9z2 = 2015 Solving x2 + 4y2 + 9z2 = 2015 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4y2' to each side of the equation. x2 + 4y2 + -4y2 + 9z2 = 2015 + -4y2 Combine like terms: 4y2 + -4y2 = 0 x2 + 0 + 9z2 = 2015 + -4y2 x2 + 9z2 = 2015 + -4y2 Add '-9z2' to each side of the equation. x2 + 9z2 + -9z2 = 2015 + -4y2 + -9z2 Combine like terms: 9z2 + -9z2 = 0 x2 + 0 = 2015 + -4y2 + -9z2 x2 = 2015 + -4y2 + -9z2 Simplifying x2 = 2015 + -4y2 + -9z2 Reorder the terms: -2015 + x2 + 4y2 + 9z2 = 2015 + -4y2 + -9z2 + -2015 + 4y2 + 9z2 Reorder the terms: -2015 + x2 + 4y2 + 9z2 = 2015 + -2015 + -4y2 + 4y2 + -9z2 + 9z2 Combine like terms: 2015 + -2015 = 0 -2015 + x2 + 4y2 + 9z2 = 0 + -4y2 + 4y2 + -9z2 + 9z2 -2015 + x2 + 4y2 + 9z2 = -4y2 + 4y2 + -9z2 + 9z2 Combine like terms: -4y2 + 4y2 = 0 -2015 + x2 + 4y2 + 9z2 = 0 + -9z2 + 9z2 -2015 + x2 + 4y2 + 9z2 = -9z2 + 9z2 Combine like terms: -9z2 + 9z2 = 0 -2015 + x2 + 4y2 + 9z2 = 0 The solution to this equation could not be determined.
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