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Simplifying 189 = -6x + 3(-7x + -18) Reorder the terms: 189 = -6x + 3(-18 + -7x) 189 = -6x + (-18 * 3 + -7x * 3) 189 = -6x + (-54 + -21x) Reorder the terms: 189 = -54 + -6x + -21x Combine like terms: -6x + -21x = -27x 189 = -54 + -27x Solving 189 = -54 + -27x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27x' to each side of the equation. 189 + 27x = -54 + -27x + 27x Combine like terms: -27x + 27x = 0 189 + 27x = -54 + 0 189 + 27x = -54 Add '-189' to each side of the equation. 189 + -189 + 27x = -54 + -189 Combine like terms: 189 + -189 = 0 0 + 27x = -54 + -189 27x = -54 + -189 Combine like terms: -54 + -189 = -243 27x = -243 Divide each side by '27'. x = -9 Simplifying x = -9
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