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Simplifying 7n + 3 = 15n + 9 Reorder the terms: 3 + 7n = 15n + 9 Reorder the terms: 3 + 7n = 9 + 15n Solving 3 + 7n = 9 + 15n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-15n' to each side of the equation. 3 + 7n + -15n = 9 + 15n + -15n Combine like terms: 7n + -15n = -8n 3 + -8n = 9 + 15n + -15n Combine like terms: 15n + -15n = 0 3 + -8n = 9 + 0 3 + -8n = 9 Add '-3' to each side of the equation. 3 + -3 + -8n = 9 + -3 Combine like terms: 3 + -3 = 0 0 + -8n = 9 + -3 -8n = 9 + -3 Combine like terms: 9 + -3 = 6 -8n = 6 Divide each side by '-8'. n = -0.75 Simplifying n = -0.75
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