When 7xy + 5yz - 3zx, 4yz + 9zx - 4y and - 3xz + 5x - 2xy are added, we get
5xy + 9yz + 3zx + 5x - 4y
5xy + 9yz + 15zx + 5x - 4y
5xy + 9yz - 3zx + 5x - 4y
5xy + 9yz + 3zx - 5x - 4y
7xy + 5yz - 3zx 4yz + 9zx - 4y -2xy - 3xz + 5x 5xy + 9yz + 3zx - 4y + 5x
Solve the following:Add 7xy+5yz−3zx,4yz+9zx−4y,−3xz+5x−2y
When 4yz+9zx−4y and −3xz+5x−2xy are added, we get 4yz+6xz−2xy−4y+5x.