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Simplifying 13x + 15 = -13 + 15 Reorder the terms: 15 + 13x = -13 + 15 Combine like terms: -13 + 15 = 2 15 + 13x = 2 Solving 15 + 13x = 2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 13x = 2 + -15 Combine like terms: 15 + -15 = 0 0 + 13x = 2 + -15 13x = 2 + -15 Combine like terms: 2 + -15 = -13 13x = -13 Divide each side by '13'. x = -1 Simplifying x = -1
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