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Simplifying 84 = -6x + -2(7x + 8) Reorder the terms: 84 = -6x + -2(8 + 7x) 84 = -6x + (8 * -2 + 7x * -2) 84 = -6x + (-16 + -14x) Reorder the terms: 84 = -16 + -6x + -14x Combine like terms: -6x + -14x = -20x 84 = -16 + -20x Solving 84 = -16 + -20x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20x' to each side of the equation. 84 + 20x = -16 + -20x + 20x Combine like terms: -20x + 20x = 0 84 + 20x = -16 + 0 84 + 20x = -16 Add '-84' to each side of the equation. 84 + -84 + 20x = -16 + -84 Combine like terms: 84 + -84 = 0 0 + 20x = -16 + -84 20x = -16 + -84 Combine like terms: -16 + -84 = -100 20x = -100 Divide each side by '20'. x = -5 Simplifying x = -5
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