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Evaluate the expression 9−z 9 - z when z=8 z=8 .

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Full solution

Q. Evaluate the expression 9−z 9 - z when z=8 z=8 .
  1. Substitute z value: Substitute the value of zz into the expression.\newlineWe are given that z=8z = 8, so we substitute 88 for zz in the expression 9−z9 - z.\newline9−z9 - z becomes 9−89 - 8.
  2. Perform subtraction: Perform the subtraction.\newlineNow we subtract 88 from 99.\newline9−89 - 8 equals 11.

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