Question

Subtract 3x + y - z from the sum of 6x - 5y + 8z and -8x + 7y - 7z. ​

Answer 1

Step-by-step explanation:

6x - 5y + 8z + (-8x + 7y - 7z)

-2x+2y+z-(3x + y - z)

-5x+y

Answer 2

Step-by-step explanation:

1. $3x - 4y + 9z$
2. $- 11x - 6y - 6z$
3. Hope it helps you