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Simplifying (X2 + -9) + -1(x2 + 9) = 0 Reorder the terms: (-9 + X2) + -1(x2 + 9) = 0 Remove parenthesis around (-9 + X2) -9 + X2 + -1(x2 + 9) = 0 Reorder the terms: -9 + X2 + -1(9 + x2) = 0 -9 + X2 + (9 * -1 + x2 * -1) = 0 -9 + X2 + (-9 + -1x2) = 0 Reorder the terms: -9 + -9 + X2 + -1x2 = 0 Combine like terms: -9 + -9 = -18 -18 + X2 + -1x2 = 0 Solving -18 + X2 + -1x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '18' to each side of the equation. -18 + X2 + 18 + -1x2 = 0 + 18 Reorder the terms: -18 + 18 + X2 + -1x2 = 0 + 18 Combine like terms: -18 + 18 = 0 0 + X2 + -1x2 = 0 + 18 X2 + -1x2 = 0 + 18 Combine like terms: 0 + 18 = 18 X2 + -1x2 = 18 Add 'x2' to each side of the equation. X2 + -1x2 + x2 = 18 + x2 Combine like terms: -1x2 + x2 = 0 X2 + 0 = 18 + x2 X2 = 18 + x2 Simplifying X2 = 18 + x2 Reorder the terms: -18 + X2 + -1x2 = 18 + x2 + -18 + -1x2 Reorder the terms: -18 + X2 + -1x2 = 18 + -18 + x2 + -1x2 Combine like terms: 18 + -18 = 0 -18 + X2 + -1x2 = 0 + x2 + -1x2 -18 + X2 + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -18 + X2 + -1x2 = 0 The solution to this equation could not be determined.
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