Evaluate expression

Calculate the value of the expression z/3 - 2 z/9 + 1/6, for z = 2

Correct answer:

x =  0.3889

Step-by-step explanation:

$$\begin{gathered} z=2 \\ x=z\mathrm{/}3-2\cdot z\mathrm{/}9+1\mathrm{/}6=2\mathrm{/}3-2\cdot 2\mathrm{/}9+1\mathrm{/}6={\displaystyle \frac{7}{18}}=0.3889 \end{gathered}$$

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