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Simplifying 9n + -1(-19n) = 0 Remove parenthesis around (-19n) 9n + -1 * -19n = 0 Multiply -1 * -19 9n + 19n = 0 Combine like terms: 9n + 19n = 28n 28n = 0 Solving 28n = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Divide each side by '28'. n = 0 Simplifying n = 0
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