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Simplifying 2(7 + x) = 42 (7 * 2 + x * 2) = 42 (14 + 2x) = 42 Solving 14 + 2x = 42 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 + 2x = 42 + -14 Combine like terms: 14 + -14 = 0 0 + 2x = 42 + -14 2x = 42 + -14 Combine like terms: 42 + -14 = 28 2x = 28 Divide each side by '2'. x = 14 Simplifying x = 14
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