Question

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

Choose all answers that apply:

(Choice A)
A
(z+z) + (z+6)

(Choice B)

(z+6) + 6

(Choice C)
C
2(z+3)

Answer 1

C 2(z+3)

Explanation:

z+(z+6)

Combine like terms

2z+6

We can factor out a 2 from each term

2(z+3)