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Simplifying 140 = -5(2 + -6n) 140 = (2 * -5 + -6n * -5) 140 = (-10 + 30n) Solving 140 = -10 + 30n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-30n' to each side of the equation. 140 + -30n = -10 + 30n + -30n Combine like terms: 30n + -30n = 0 140 + -30n = -10 + 0 140 + -30n = -10 Add '-140' to each side of the equation. 140 + -140 + -30n = -10 + -140 Combine like terms: 140 + -140 = 0 0 + -30n = -10 + -140 -30n = -10 + -140 Combine like terms: -10 + -140 = -150 -30n = -150 Divide each side by '-30'. n = 5 Simplifying n = 5
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