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Simplifying 12 + -1(7n) = 0 Remove parenthesis around (7n) 12 + -1 * 7n = 0 Multiply -1 * 7 12 + -7n = 0 Solving 12 + -7n = 0 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -7n = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -7n = 0 + -12 -7n = 0 + -12 Combine like terms: 0 + -12 = -12 -7n = -12 Divide each side by '-7'. n = 1.714285714 Simplifying n = 1.714285714
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