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Simplifying 13n + 7(-3n + -1) = -63 Reorder the terms: 13n + 7(-1 + -3n) = -63 13n + (-1 * 7 + -3n * 7) = -63 13n + (-7 + -21n) = -63 Reorder the terms: -7 + 13n + -21n = -63 Combine like terms: 13n + -21n = -8n -7 + -8n = -63 Solving -7 + -8n = -63 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -8n = -63 + 7 Combine like terms: -7 + 7 = 0 0 + -8n = -63 + 7 -8n = -63 + 7 Combine like terms: -63 + 7 = -56 -8n = -56 Divide each side by '-8'. n = 7 Simplifying n = 7
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