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Simplifying 5n + 7 = -1 + 7n Reorder the terms: 7 + 5n = -1 + 7n Solving 7 + 5n = -1 + 7n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-7n' to each side of the equation. 7 + 5n + -7n = -1 + 7n + -7n Combine like terms: 5n + -7n = -2n 7 + -2n = -1 + 7n + -7n Combine like terms: 7n + -7n = 0 7 + -2n = -1 + 0 7 + -2n = -1 Add '-7' to each side of the equation. 7 + -7 + -2n = -1 + -7 Combine like terms: 7 + -7 = 0 0 + -2n = -1 + -7 -2n = -1 + -7 Combine like terms: -1 + -7 = -8 -2n = -8 Divide each side by '-2'. n = 4 Simplifying n = 4
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