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Evaluate 3z when z=9.

Evaluate \newline3z3z when \newlinez=9z=9.

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Full solution

Q. Evaluate \newline3z3z when \newlinez=9z=9.
  1. Identify expression: Identify the expression to evaluate.\newlineWe are given the expression 3z3z and the value of zz as 99. We need to substitute zz with 99 in the expression 3z3z.
  2. Substitute value of z: Substitute the value of z into the expression.\newlineReplace z with 99 in the expression 3z3z.\newlineExpression: 3×93 \times 9
  3. Perform multiplication: Perform the multiplication.\newlineMultiply 33 by 99 to find the value of the expression.\newline3×9=273 \times 9 = 27

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