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Simplifying 84 = -4(2x + -5) Reorder the terms: 84 = -4(-5 + 2x) 84 = (-5 * -4 + 2x * -4) 84 = (20 + -8x) Solving 84 = 20 + -8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8x' to each side of the equation. 84 + 8x = 20 + -8x + 8x Combine like terms: -8x + 8x = 0 84 + 8x = 20 + 0 84 + 8x = 20 Add '-84' to each side of the equation. 84 + -84 + 8x = 20 + -84 Combine like terms: 84 + -84 = 0 0 + 8x = 20 + -84 8x = 20 + -84 Combine like terms: 20 + -84 = -64 8x = -64 Divide each side by '8'. x = -8 Simplifying x = -8
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