Question

If we add, 7xy+5yz-3zx; 4yz+9zx-4y and -3xz+5x-2xy, then the answer is :
a, 5xy+9yz+3zx+5x-4y
b, 5xy-9yz+3zx-5x-4y
c, 5xy+10yz+3zx+15x-4y
d, 5xy+10yz+3zx+5x-6y
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Answer 1

Answer:

option a

Step-by-step explanation:

add the coefficients of all similar variables

Answer 2

Answer:-

5xy + 9yz + 3zx + 5x - 4y

Step-by-step explanation:

• Add the like terms.

Example:7xy-2xy=5xy.

I am confident in my answer. Hope this helps.