Answer:
[tex]2(z+3)[/tex]
Step-by-step explanation:
We are given that the expression
[tex]z+(z+6)[/tex]
We have to find the expression which is equivalent to given expression.
[tex]z+z+6[/tex]
To find the equivalent expression we will combine like terms
Now, combine like terms we get
[tex](z+z)+6[/tex]
[tex]2z+6[/tex]
By using the property
[tex]a+a+..+a(n times)=na[/tex]
Therefore, the expression we get
[tex]2z+6[/tex]
Now, taking common 2
[tex]2(z+3)[/tex]
Hence, the expression which is equivalent to given expression is given by
[tex]2(z+3)[/tex]