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Simplifying X2 + -8x = -21 Solving X2 + -8x = -21 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '8x' to each side of the equation. X2 + -8x + 8x = -21 + 8x Combine like terms: -8x + 8x = 0 X2 + 0 = -21 + 8x X2 = -21 + 8x Simplifying X2 = -21 + 8x Reorder the terms: 21 + X2 + -8x = -21 + 8x + 21 + -8x Reorder the terms: 21 + X2 + -8x = -21 + 21 + 8x + -8x Combine like terms: -21 + 21 = 0 21 + X2 + -8x = 0 + 8x + -8x 21 + X2 + -8x = 8x + -8x Combine like terms: 8x + -8x = 0 21 + X2 + -8x = 0 The solution to this equation could not be determined.
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