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Simplifying 3 + n = 3 + -7n Add '-3' to each side of the equation. 3 + -3 + n = 3 + -3 + -7n Combine like terms: 3 + -3 = 0 0 + n = 3 + -3 + -7n n = 3 + -3 + -7n Combine like terms: 3 + -3 = 0 n = 0 + -7n n = -7n Solving n = -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. n + 7n = -7n + 7n Combine like terms: n + 7n = 8n 8n = -7n + 7n Combine like terms: -7n + 7n = 0 8n = 0 Divide each side by '8'. n = 0 Simplifying n = 0
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