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evaluate 9−8s9 - \frac{8}{s} when S=4S=4

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Full solution

Q. evaluate 9−8s9 - \frac{8}{s} when S=4S=4
  1. Identify Given Expression: Identify the given expression and the value of SS. The expression to evaluate is 9−8s9 - \frac{8}{s}, and we are given that S=4S=4.
  2. Substitute Value of S: Substitute the value of S into the expression.\newlineReplace S with 44 in the expression 9−8/s9 - 8/s to get 9−8/49 - 8/4.
  3. Perform Division: Perform the division in the expression.\newlineCalculate 88 divided by 44 to get 22.\newline84=2\frac{8}{4} = 2
  4. Subtract Result: Subtract the result of the division from 99. Now, subtract 22 from 99 to get the final answer. 9−2=79 - 2 = 7

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