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Simplifying n + -1(-2 + n) = -7 + 18n n + (-2 * -1 + n * -1) = -7 + 18n n + (2 + -1n) = -7 + 18n Reorder the terms: 2 + n + -1n = -7 + 18n Combine like terms: n + -1n = 0 2 + 0 = -7 + 18n 2 = -7 + 18n Solving 2 = -7 + 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. 2 + -18n = -7 + 18n + -18n Combine like terms: 18n + -18n = 0 2 + -18n = -7 + 0 2 + -18n = -7 Add '-2' to each side of the equation. 2 + -2 + -18n = -7 + -2 Combine like terms: 2 + -2 = 0 0 + -18n = -7 + -2 -18n = -7 + -2 Combine like terms: -7 + -2 = -9 -18n = -9 Divide each side by '-18'. n = 0.5 Simplifying n = 0.5
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