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Simplifying 2(7x + 7) = 140 Reorder the terms: 2(7 + 7x) = 140 (7 * 2 + 7x * 2) = 140 (14 + 14x) = 140 Solving 14 + 14x = 140 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + 14x = 140 + -14 Combine like terms: 14 + -14 = 0 0 + 14x = 140 + -14 14x = 140 + -14 Combine like terms: 140 + -14 = 126 14x = 126 Divide each side by '14'. x = 9 Simplifying x = 9
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