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Simplifying 7(2x + 1) = 42 Reorder the terms: 7(1 + 2x) = 42 (1 * 7 + 2x * 7) = 42 (7 + 14x) = 42 Solving 7 + 14x = 42 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 14x = 42 + -7 Combine like terms: 7 + -7 = 0 0 + 14x = 42 + -7 14x = 42 + -7 Combine like terms: 42 + -7 = 35 14x = 35 Divide each side by '14'. x = 2.5 Simplifying x = 2.5
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