1.

6x - 20y + 7z - 8x + 25y - 11z

Answer»

ong>Answer:

-2X + 5y - 4z is the answer ...

Step-by-step EXPLANATION:

6x - 20y + 7z - 8x + 25y - 11Z

= 6x - 8x - 20y + 25y + 7z -11z

= -2x + 5y - 4z



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