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Simplifying 54 + -21n = 324 Solving 54 + -21n = 324 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '-54' to each side of the equation. 54 + -54 + -21n = 324 + -54 Combine like terms: 54 + -54 = 0 0 + -21n = 324 + -54 -21n = 324 + -54 Combine like terms: 324 + -54 = 270 -21n = 270 Divide each side by '-21'. n = -12.85714286 Simplifying n = -12.85714286
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