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