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Simplifying 3n + 1 = n + 7 Reorder the terms: 1 + 3n = n + 7 Reorder the terms: 1 + 3n = 7 + n Solving 1 + 3n = 7 + n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-1n' to each side of the equation. 1 + 3n + -1n = 7 + n + -1n Combine like terms: 3n + -1n = 2n 1 + 2n = 7 + n + -1n Combine like terms: n + -1n = 0 1 + 2n = 7 + 0 1 + 2n = 7 Add '-1' to each side of the equation. 1 + -1 + 2n = 7 + -1 Combine like terms: 1 + -1 = 0 0 + 2n = 7 + -1 2n = 7 + -1 Combine like terms: 7 + -1 = 6 2n = 6 Divide each side by '2'. n = 3 Simplifying n = 3
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