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Simplifying 2x2 + 18 = -1 Reorder the terms: 18 + 2x2 = -1 Solving 18 + 2x2 = -1 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + 2x2 = -1 + -18 Combine like terms: 18 + -18 = 0 0 + 2x2 = -1 + -18 2x2 = -1 + -18 Combine like terms: -1 + -18 = -19 2x2 = -19 Divide each side by '2'. x2 = -9.5 Simplifying x2 = -9.5 Reorder the terms: 9.5 + x2 = -9.5 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 9.5 + x2 = 0.0 The solution to this equation could not be determined.
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