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Simplifying 189 = -6 + 3(7x + -18) Reorder the terms: 189 = -6 + 3(-18 + 7x) 189 = -6 + (-18 * 3 + 7x * 3) 189 = -6 + (-54 + 21x) Combine like terms: -6 + -54 = -60 189 = -60 + 21x Solving 189 = -60 + 21x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21x' to each side of the equation. 189 + -21x = -60 + 21x + -21x Combine like terms: 21x + -21x = 0 189 + -21x = -60 + 0 189 + -21x = -60 Add '-189' to each side of the equation. 189 + -189 + -21x = -60 + -189 Combine like terms: 189 + -189 = 0 0 + -21x = -60 + -189 -21x = -60 + -189 Combine like terms: -60 + -189 = -249 -21x = -249 Divide each side by '-21'. x = 11.85714286 Simplifying x = 11.85714286
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