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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 = -18 2x2 = -18 Divide each side by '2'. x2 = -9 Simplifying x2 = -9 Reorder the terms: 9 + x2 = -9 + 9 Combine like terms: -9 + 9 = 0 9 + x2 = 0 The solution to this equation could not be determined.
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