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Simplifying X2 + -9x + 21 = 1 Reorder the terms: 21 + X2 + -9x = 1 Solving 21 + X2 + -9x = 1 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + X2 + -21 + -9x = 1 + -21 Reorder the terms: 21 + -21 + X2 + -9x = 1 + -21 Combine like terms: 21 + -21 = 0 0 + X2 + -9x = 1 + -21 X2 + -9x = 1 + -21 Combine like terms: 1 + -21 = -20 X2 + -9x = -20 Add '9x' to each side of the equation. X2 + -9x + 9x = -20 + 9x Combine like terms: -9x + 9x = 0 X2 + 0 = -20 + 9x X2 = -20 + 9x Simplifying X2 = -20 + 9x Reorder the terms: 20 + X2 + -9x = -20 + 9x + 20 + -9x Reorder the terms: 20 + X2 + -9x = -20 + 20 + 9x + -9x Combine like terms: -20 + 20 = 0 20 + X2 + -9x = 0 + 9x + -9x 20 + X2 + -9x = 9x + -9x Combine like terms: 9x + -9x = 0 20 + X2 + -9x = 0 The solution to this equation could not be determined.
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