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Simplifying 7(2x + -1) = 20 Reorder the terms: 7(-1 + 2x) = 20 (-1 * 7 + 2x * 7) = 20 (-7 + 14x) = 20 Solving -7 + 14x = 20 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 = 20 + 7 Combine like terms: -7 + 7 = 0 0 + 14x = 20 + 7 14x = 20 + 7 Combine like terms: 20 + 7 = 27 14x = 27 Divide each side by '14'. x = 1.928571429 Simplifying x = 1.928571429
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