add 7xy+5yz-3zx, 4yz+9zx-4y
Answers
Answered by
0
Step-by-step explanation:
7xy+5xy-3zx + 4xy+9zx-4y
7xy+5xy+4xy-3zx+9zx-4y
16xy+6zx-4y ( Ans)
Answered by
2
Answer:
7xy + 9yz + 6zx - 4y
Step-by-step explanation:
(7xy + 5yz - 3zx) + (4yz + 9zx - 4y)
= 7xy + 5yz - 3zx + 4yz + 9zx - 4y
= 7xy + 5yz + 4yz - 3zx + 9zx - 4y
= 7xy + 9yz + 6zx - 4y
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