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Simplifying X2 + 21 + -13 = 0 Reorder the terms: 21 + -13 + X2 = 0 Combine like terms: 21 + -13 = 8 8 + X2 = 0 Solving 8 + X2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + X2 = 0 + -8 Combine like terms: 8 + -8 = 0 0 + X2 = 0 + -8 X2 = 0 + -8 Combine like terms: 0 + -8 = -8 X2 = -8 Simplifying X2 = -8 Reorder the terms: 8 + X2 = -8 + 8 Combine like terms: -8 + 8 = 0 8 + X2 = 0 The solution to this equation could not be determined.
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