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Simplifying 2(3x + 15) = 84 Reorder the terms: 2(15 + 3x) = 84 (15 * 2 + 3x * 2) = 84 (30 + 6x) = 84 Solving 30 + 6x = 84 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + 6x = 84 + -30 Combine like terms: 30 + -30 = 0 0 + 6x = 84 + -30 6x = 84 + -30 Combine like terms: 84 + -30 = 54 6x = 54 Divide each side by '6'. x = 9 Simplifying x = 9
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