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Simplifying 20 + 10n = -18n + 91 Reorder the terms: 20 + 10n = 91 + -18n Solving 20 + 10n = 91 + -18n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '18n' to each side of the equation. 20 + 10n + 18n = 91 + -18n + 18n Combine like terms: 10n + 18n = 28n 20 + 28n = 91 + -18n + 18n Combine like terms: -18n + 18n = 0 20 + 28n = 91 + 0 20 + 28n = 91 Add '-20' to each side of the equation. 20 + -20 + 28n = 91 + -20 Combine like terms: 20 + -20 = 0 0 + 28n = 91 + -20 28n = 91 + -20 Combine like terms: 91 + -20 = 71 28n = 71 Divide each side by '28'. n = 2.535714286 Simplifying n = 2.535714286
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