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Simplifying (2x2 + 9y2 + -8) + -1(7x2 + 9y2 + -3) = 0 Reorder the terms: (-8 + 2x2 + 9y2) + -1(7x2 + 9y2 + -3) = 0 Remove parenthesis around (-8 + 2x2 + 9y2) -8 + 2x2 + 9y2 + -1(7x2 + 9y2 + -3) = 0 Reorder the terms: -8 + 2x2 + 9y2 + -1(-3 + 7x2 + 9y2) = 0 -8 + 2x2 + 9y2 + (-3 * -1 + 7x2 * -1 + 9y2 * -1) = 0 -8 + 2x2 + 9y2 + (3 + -7x2 + -9y2) = 0 Reorder the terms: -8 + 3 + 2x2 + -7x2 + 9y2 + -9y2 = 0 Combine like terms: -8 + 3 = -5 -5 + 2x2 + -7x2 + 9y2 + -9y2 = 0 Combine like terms: 2x2 + -7x2 = -5x2 -5 + -5x2 + 9y2 + -9y2 = 0 Combine like terms: 9y2 + -9y2 = 0 -5 + -5x2 + 0 = 0 -5 + -5x2 = 0 Solving -5 + -5x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -5x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -5x2 = 0 + 5 -5x2 = 0 + 5 Combine like terms: 0 + 5 = 5 -5x2 = 5 Divide each side by '-5'. x2 = -1 Simplifying x2 = -1 Reorder the terms: 1 + x2 = -1 + 1 Combine like terms: -1 + 1 = 0 1 + x2 = 0 The solution to this equation could not be determined.
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