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Simplifying X2 + -8x + 21 = 2x + 1 Reorder the terms: 21 + X2 + -8x = 2x + 1 Reorder the terms: 21 + X2 + -8x = 1 + 2x Solving 21 + X2 + -8x = 1 + 2x 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 + -8x = 1 + -21 + 2x Reorder the terms: 21 + -21 + X2 + -8x = 1 + -21 + 2x Combine like terms: 21 + -21 = 0 0 + X2 + -8x = 1 + -21 + 2x X2 + -8x = 1 + -21 + 2x Combine like terms: 1 + -21 = -20 X2 + -8x = -20 + 2x Add '8x' to each side of the equation. X2 + -8x + 8x = -20 + 2x + 8x Combine like terms: -8x + 8x = 0 X2 + 0 = -20 + 2x + 8x X2 = -20 + 2x + 8x Combine like terms: 2x + 8x = 10x X2 = -20 + 10x Simplifying X2 = -20 + 10x Reorder the terms: 20 + X2 + -10x = -20 + 10x + 20 + -10x Reorder the terms: 20 + X2 + -10x = -20 + 20 + 10x + -10x Combine like terms: -20 + 20 = 0 20 + X2 + -10x = 0 + 10x + -10x 20 + X2 + -10x = 10x + -10x Combine like terms: 10x + -10x = 0 20 + X2 + -10x = 0 The solution to this equation could not be determined.
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