Evaluate expression

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

Result

x =  0.389

Solution:

z=2 x=z/3−2⋅ z/9+1/6=2/3−2⋅ 2/9+1/6≐718≐0.3889≐0.389z=2 \ \\ x=z/3 - 2 \cdot \ z/9+ 1/6=2/3 - 2 \cdot \ 2/9+ 1/6 \doteq \dfrac{ 7 }{ 18 } \doteq 0.3889 \doteq 0.389

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