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Simplifying 2x2 + 3 = -21 Reorder the terms: 3 + 2x2 = -21 Solving 3 + 2x2 = -21 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2x2 = -21 + -3 Combine like terms: 3 + -3 = 0 0 + 2x2 = -21 + -3 2x2 = -21 + -3 Combine like terms: -21 + -3 = -24 2x2 = -24 Divide each side by '2'. x2 = -12 Simplifying x2 = -12 Reorder the terms: 12 + x2 = -12 + 12 Combine like terms: -12 + 12 = 0 12 + x2 = 0 The solution to this equation could not be determined.
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