delorcoantonio delorcoantonio 30-03-2017 Mathematics contestada Simplify:–4(7x – 3y – z) – (–6)(9x – z + 2) A. –82x + 12y – 10z + 12 B. 26x + 12y – 2z + 12 C. 26x + 12y + 2z + 12 D. 26x + 12y – 2z – 12