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Simplifying (x2 + -1) + -1(8x2 + 9) = 0 Reorder the terms: (-1 + x2) + -1(8x2 + 9) = 0 Remove parenthesis around (-1 + x2) -1 + x2 + -1(8x2 + 9) = 0 Reorder the terms: -1 + x2 + -1(9 + 8x2) = 0 -1 + x2 + (9 * -1 + 8x2 * -1) = 0 -1 + x2 + (-9 + -8x2) = 0 Reorder the terms: -1 + -9 + x2 + -8x2 = 0 Combine like terms: -1 + -9 = -10 -10 + x2 + -8x2 = 0 Combine like terms: x2 + -8x2 = -7x2 -10 + -7x2 = 0 Solving -10 + -7x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + -7x2 = 0 + 10 Combine like terms: -10 + 10 = 0 0 + -7x2 = 0 + 10 -7x2 = 0 + 10 Combine like terms: 0 + 10 = 10 -7x2 = 10 Divide each side by '-7'. x2 = -1.428571429 Simplifying x2 = -1.428571429 Reorder the terms: 1.428571429 + x2 = -1.428571429 + 1.428571429 Combine like terms: -1.428571429 + 1.428571429 = 0.000000000 1.428571429 + x2 = 0.000000000 The solution to this equation could not be determined.
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