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Simplifying x2 + 8 + 21 = 9 Reorder the terms: 8 + 21 + x2 = 9 Combine like terms: 8 + 21 = 29 29 + x2 = 9 Solving 29 + x2 = 9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-29' to each side of the equation. 29 + -29 + x2 = 9 + -29 Combine like terms: 29 + -29 = 0 0 + x2 = 9 + -29 x2 = 9 + -29 Combine like terms: 9 + -29 = -20 x2 = -20 Simplifying x2 = -20 Reorder the terms: 20 + x2 = -20 + 20 Combine like terms: -20 + 20 = 0 20 + x2 = 0 The solution to this equation could not be determined.
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