Question

Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y

Answer 1

$\huge{\mathfrak{\underline{\red{Answer!}}}}$

Your question is :-

Add 7xy + 5yz - 3zx , 4yz + 9zx - 4y and - 3xz + 5x - 2xy .

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

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

By rearranging :-

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

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

Answer 2

Answer:

7xy+9yz+6zx-4y

Step-by-step explanation:

7xy + 5yz – 3zx+4yz + 9zx – 4y

=7xy+(5+4)yz+(-3+9)zx-4y

=7xy+9yz+6zx-4y