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Simplifying -3(-2z) = 54 Remove parenthesis around (-2z) -3 * -2z = 54 Multiply -3 * -2 6z = 54 Solving 6z = 54 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Divide each side by '6'. z = 9 Simplifying z = 9
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