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Simplifying 120 = 15 * 2n Multiply 15 * 2 120 = 30n Solving 120 = 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. 120 + -30n = 30n + -30n Combine like terms: 30n + -30n = 0 120 + -30n = 0 Add '-120' to each side of the equation. 120 + -120 + -30n = 0 + -120 Combine like terms: 120 + -120 = 0 0 + -30n = 0 + -120 -30n = 0 + -120 Combine like terms: 0 + -120 = -120 -30n = -120 Divide each side by '-30'. n = 4 Simplifying n = 4
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