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Simplifying 3(7x + 9) = -162 Reorder the terms: 3(9 + 7x) = -162 (9 * 3 + 7x * 3) = -162 (27 + 21x) = -162 Solving 27 + 21x = -162 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-27' to each side of the equation. 27 + -27 + 21x = -162 + -27 Combine like terms: 27 + -27 = 0 0 + 21x = -162 + -27 21x = -162 + -27 Combine like terms: -162 + -27 = -189 21x = -189 Divide each side by '21'. x = -9 Simplifying x = -9
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