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Simplifying 397 = 129 + 45n Solving 397 = 129 + 45n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-45n' to each side of the equation. 397 + -45n = 129 + 45n + -45n Combine like terms: 45n + -45n = 0 397 + -45n = 129 + 0 397 + -45n = 129 Add '-397' to each side of the equation. 397 + -397 + -45n = 129 + -397 Combine like terms: 397 + -397 = 0 0 + -45n = 129 + -397 -45n = 129 + -397 Combine like terms: 129 + -397 = -268 -45n = -268 Divide each side by '-45'. n = 5.955555556 Simplifying n = 5.955555556
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