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Simplifying 7x2 + 15y2 = 18 Solving 7x2 + 15y2 = 18 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. 7x2 + 15y2 + -15y2 = 18 + -15y2 Combine like terms: 15y2 + -15y2 = 0 7x2 + 0 = 18 + -15y2 7x2 = 18 + -15y2 Divide each side by '7'. x2 = 2.571428571 + -2.142857143y2 Simplifying x2 = 2.571428571 + -2.142857143y2 Reorder the terms: -2.571428571 + x2 + 2.142857143y2 = 2.571428571 + -2.142857143y2 + -2.571428571 + 2.142857143y2 Reorder the terms: -2.571428571 + x2 + 2.142857143y2 = 2.571428571 + -2.571428571 + -2.142857143y2 + 2.142857143y2 Combine like terms: 2.571428571 + -2.571428571 = 0.000000000 -2.571428571 + x2 + 2.142857143y2 = 0.000000000 + -2.142857143y2 + 2.142857143y2 -2.571428571 + x2 + 2.142857143y2 = -2.142857143y2 + 2.142857143y2 Combine like terms: -2.142857143y2 + 2.142857143y2 = 0.000000000 -2.571428571 + x2 + 2.142857143y2 = 0.000000000 The solution to this equation could not be determined.
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