Question

Which expressions are equivalent to z+(z+6)?

Answer 1

Answer:
`2 z + 6` and
`2 (z + 3)`

Explanation:

We have te following expression:

`z+(z+6)`

Which can be written as:

`z+z+6=2z+6`

Applying common factor 2 in the right side of the equation:

`z+z+6=2(z+3)`