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Simplifying -2.5(-2.1y) = 0 Remove parenthesis around (-2.1y) -2.5 * -2.1y = 0 Multiply -2.5 * -2.1 5.25y = 0 Solving 5.25y = 0 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Divide each side by '5.25'. y = 0 Simplifying y = 0
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