Answer :
Answer:
13x+19y-34z
Step-by-step explanation:
3(2x + 4y - 2z) + 7(x + y - 4z)
6x+12y-6z+7x+7y-28z
6x+7x=13x
-6z-28z=-34z
12y+7y=19y
Answer:
13x+19y-34z
Step-by-step explanation:
3(2x + 4y - 2z) + 7(x + y - 4z)
6x+12y-6z+7x+7y-28z
6x+7x=13x
-6z-28z=-34z
12y+7y=19y