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Simplifying -161 = 7(-2 + 7n) -161 = (-2 * 7 + 7n * 7) -161 = (-14 + 49n) Solving -161 = -14 + 49n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-49n' to each side of the equation. -161 + -49n = -14 + 49n + -49n Combine like terms: 49n + -49n = 0 -161 + -49n = -14 + 0 -161 + -49n = -14 Add '161' to each side of the equation. -161 + 161 + -49n = -14 + 161 Combine like terms: -161 + 161 = 0 0 + -49n = -14 + 161 -49n = -14 + 161 Combine like terms: -14 + 161 = 147 -49n = 147 Divide each side by '-49'. n = -3 Simplifying n = -3
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