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What is the value of the expression if z=27? 7/9z-18+1/3z 12 30 48 84

What is the value of the expression if z=27? 7/9z-18+1/3z 12 30 48 84
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What is the value of the expression if z=27?
7/9z-18+1/3z
12
30
48
84

User Didier Spezia
by
7.8k points

2 Answers

5 votes

Answer:

12

Explanation:

got it right on edge

User Bayram
by
6.8k points
4 votes

Answer:

12

Explanation:


(7)/(9)z-18+(1)/(3)z\\\\\text{Substitute}\ z=27\\\\(7)/(9\!\!\!\!\diagup_1)\cdot27\!\!\!\!\!\diagup^3-18+(1)/(3\!\!\!\!\diagup_1)\cdot27\!\!\!\!\!\diagup^9=(7)(3)-18+(1)(9)\\\\=21-18+9=12

User Rakesh Kumar Oad
by
8.3k points
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