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Evaluate 9-b when b=8.

Evaluate 9−b9-b when b=8b=8.

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Full solution

Q. Evaluate 9−b9-b when b=8b=8.
  1. Substitute value of bb: Substitute the given value of bb into the expression.\newlineCalculation: 9−b=9−89 - b = 9 - 8
  2. Perform subtraction: Simplify the expression by performing the subtraction.\newlineCalculation: 9−8=19 - 8 = 1

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