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Simplifying x2 + -15y2 = 7 Solving x2 + -15y2 = 7 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '15y2' to each side of the equation. x2 + -15y2 + 15y2 = 7 + 15y2 Combine like terms: -15y2 + 15y2 = 0 x2 + 0 = 7 + 15y2 x2 = 7 + 15y2 Simplifying x2 = 7 + 15y2 Reorder the terms: -7 + x2 + -15y2 = 7 + 15y2 + -7 + -15y2 Reorder the terms: -7 + x2 + -15y2 = 7 + -7 + 15y2 + -15y2 Combine like terms: 7 + -7 = 0 -7 + x2 + -15y2 = 0 + 15y2 + -15y2 -7 + x2 + -15y2 = 15y2 + -15y2 Combine like terms: 15y2 + -15y2 = 0 -7 + x2 + -15y2 = 0 The solution to this equation could not be determined.
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