Question

answer the question step by step​

Answer 1

Answer:

-16x - 7 + y - z

Step-by-step explanation:

Step 1:

13x - 4y + 7z + ( -6z + 6x + 3y )

13x - 4y + 7z - 6z + 6x + 3y

13x + 6x - 4y + 3y + 7z - 6z

19x - y + z

Step 2:

6x - 4y - 4z + 2x + 4y - 7

6x + 2x - 4y + 4y - 4z - 7

8x - 7

Step 3:

8x-7 - ( 19x - y + z )

8x - 7 - 19x + y - z

8x - 19x - 7 + y - z

-16x - 7 + y - z

Ans: -16x - 7 + y - z

Answer 2

Answer:

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