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Simplifying 7(-3n + -4) = -91 Reorder the terms: 7(-4 + -3n) = -91 (-4 * 7 + -3n * 7) = -91 (-28 + -21n) = -91 Solving -28 + -21n = -91 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '28' to each side of the equation. -28 + 28 + -21n = -91 + 28 Combine like terms: -28 + 28 = 0 0 + -21n = -91 + 28 -21n = -91 + 28 Combine like terms: -91 + 28 = -63 -21n = -63 Divide each side by '-21'. n = 3 Simplifying n = 3
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