Question

Which expressions are equivalent to z + (z + 6)z+(z+6)z, plus, left parenthesis, z, plus, 6, right parenthesis ?

Answer 1

Answer:

$2(z+3)$

Step-by-step explanation:

We are given that  the expression

$z+(z+6)$

We have to find the expression which is equivalent to given expression.

$z+z+6$

To find the equivalent expression we will combine like terms

Now, combine like terms we get

$(z+z)+6$

$2z+6$

By using the property

$a+a+..+a(n times)=na$

Therefore, the expression we get

$2z+6$

Now, taking common 2

$2(z+3)$

Hence, the expression which is equivalent to given expression is given by

$2(z+3)$