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Simplifying 5(2x + 4) = 140 Reorder the terms: 5(4 + 2x) = 140 (4 * 5 + 2x * 5) = 140 (20 + 10x) = 140 Solving 20 + 10x = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + 10x = 140 + -20 Combine like terms: 20 + -20 = 0 0 + 10x = 140 + -20 10x = 140 + -20 Combine like terms: 140 + -20 = 120 10x = 120 Divide each side by '10'. x = 12 Simplifying x = 12
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