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Simplifying -1(-8x) = (-78) Remove parenthesis around (-8x) -1 * -8x = (-78) Multiply -1 * -8 8x = (-78) 8x = -78 Solving 8x = -78 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Divide each side by '8'. x = -9.75 Simplifying x = -9.75
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