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Simplifying 7(-3x + 6) = 189 Reorder the terms: 7(6 + -3x) = 189 (6 * 7 + -3x * 7) = 189 (42 + -21x) = 189 Solving 42 + -21x = 189 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-42' to each side of the equation. 42 + -42 + -21x = 189 + -42 Combine like terms: 42 + -42 = 0 0 + -21x = 189 + -42 -21x = 189 + -42 Combine like terms: 189 + -42 = 147 -21x = 147 Divide each side by '-21'. x = -7 Simplifying x = -7
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