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Simplifying X2 + 21x = -10x Solving X2 + 21x = -10x Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-21x' to each side of the equation. X2 + 21x + -21x = -10x + -21x Combine like terms: 21x + -21x = 0 X2 + 0 = -10x + -21x X2 = -10x + -21x Combine like terms: -10x + -21x = -31x X2 = -31x Simplifying X2 = -31x Combine like terms: -31x + 31x = 0 X2 + 31x = 0 The solution to this equation could not be determined.
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