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Simplifying 8n + 7 = 5n + 4 Reorder the terms: 7 + 8n = 5n + 4 Reorder the terms: 7 + 8n = 4 + 5n Solving 7 + 8n = 4 + 5n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-5n' to each side of the equation. 7 + 8n + -5n = 4 + 5n + -5n Combine like terms: 8n + -5n = 3n 7 + 3n = 4 + 5n + -5n Combine like terms: 5n + -5n = 0 7 + 3n = 4 + 0 7 + 3n = 4 Add '-7' to each side of the equation. 7 + -7 + 3n = 4 + -7 Combine like terms: 7 + -7 = 0 0 + 3n = 4 + -7 3n = 4 + -7 Combine like terms: 4 + -7 = -3 3n = -3 Divide each side by '3'. n = -1 Simplifying n = -1
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