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Simplifying 9x2 + 9y2 = 135 Solving 9x2 + 9y2 = 135 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9y2' to each side of the equation. 9x2 + 9y2 + -9y2 = 135 + -9y2 Combine like terms: 9y2 + -9y2 = 0 9x2 + 0 = 135 + -9y2 9x2 = 135 + -9y2 Divide each side by '9'. x2 = 15 + -1y2 Simplifying x2 = 15 + -1y2 Reorder the terms: -15 + x2 + y2 = 15 + -1y2 + -15 + y2 Reorder the terms: -15 + x2 + y2 = 15 + -15 + -1y2 + y2 Combine like terms: 15 + -15 = 0 -15 + x2 + y2 = 0 + -1y2 + y2 -15 + x2 + y2 = -1y2 + y2 Combine like terms: -1y2 + y2 = 0 -15 + x2 + y2 = 0 The solution to this equation could not be determined.
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