Question

plz help me solving this expression ​

Answer 1

Step-by-step explanation:

7xy+5yz-3zx+4yz+9zx-4y-3xz+5x-2xy

= 5xy + 9yz + 6zx - 4y -3xz +5x

Answer 2

Answer:

0

Step-by-step explanation:

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