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Simplifying 2x + 1 = 9 + -13 Reorder the terms: 1 + 2x = 9 + -13 Combine like terms: 9 + -13 = -4 1 + 2x = -4 Solving 1 + 2x = -4 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2x = -4 + -1 Combine like terms: 1 + -1 = 0 0 + 2x = -4 + -1 2x = -4 + -1 Combine like terms: -4 + -1 = -5 2x = -5 Divide each side by '2'. x = -2.5 Simplifying x = -2.5
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