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Simplifying x2 + 12 = -9 Reorder the terms: 12 + x2 = -9 Solving 12 + x2 = -9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + x2 = -9 + -12 Combine like terms: 12 + -12 = 0 0 + x2 = -9 + -12 x2 = -9 + -12 Combine like terms: -9 + -12 = -21 x2 = -21 Simplifying x2 = -21 Reorder the terms: 21 + x2 = -21 + 21 Combine like terms: -21 + 21 = 0 21 + x2 = 0 The solution to this equation could not be determined.
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