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Simplifying 1 + -1n = 7 + -2n Solving 1 + -1n = 7 + -2n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '2n' to each side of the equation. 1 + -1n + 2n = 7 + -2n + 2n Combine like terms: -1n + 2n = 1n 1 + 1n = 7 + -2n + 2n Combine like terms: -2n + 2n = 0 1 + 1n = 7 + 0 1 + 1n = 7 Add '-1' to each side of the equation. 1 + -1 + 1n = 7 + -1 Combine like terms: 1 + -1 = 0 0 + 1n = 7 + -1 1n = 7 + -1 Combine like terms: 7 + -1 = 6 1n = 6 Divide each side by '1'. n = 6 Simplifying n = 6
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