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Simplifying 7n + 21 + n = 37 Reorder the terms: 21 + 7n + n = 37 Combine like terms: 7n + n = 8n 21 + 8n = 37 Solving 21 + 8n = 37 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + 8n = 37 + -21 Combine like terms: 21 + -21 = 0 0 + 8n = 37 + -21 8n = 37 + -21 Combine like terms: 37 + -21 = 16 8n = 16 Divide each side by '8'. n = 2 Simplifying n = 2
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