Question

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

Choose All the apply

A) (z+z)+(z+6)
B) (z+6)+6
C)2(z+3)

Answer 1

`C) \: \: \: 2(z+3)`

Explanation:

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

Answer 2

it's answer is c. 2( z + 3)