Answer:
The value of the expression is 12.
Step-by-step explanation:
Given : Expression [tex]\frac{7}{9}z-18+\frac{1}{3}z[/tex] , where z=27
To find : The value of expression when z=27
Solution :
Given expression:
[tex]\frac{7}{9}z-18+\frac{1}{3}z[/tex]
Substitute value of z=27
[tex]=\frac{7}{9}(27)-18+\frac{1}{3}(27)[/tex]
[tex]=7\times 3-18+1\times 9[/tex]
[tex]=21-18+9[/tex]
[tex]=21-9[/tex]
[tex]=12[/tex]
Therefore, The value of the expression is 12.
