Question

If we add, 7xy + 5yz – 3zx, 4yz + 9zx – 4y and -3xz + 5x – 2xy, then the answer is:​

Answer 1

Answer:

5xy+9yz-15zx-4y+5x

Step-by-step explanation:

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

5xy+9yz-15zx-4y+5x

Answer 2

Given algebraic expressions :

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

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

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

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

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

⇒ (5)xy + (9)yz + (- 6 + 9)zx + 5x - 4y

⇒ (5)xy + (9)yz + (3)zx + 5x - 4y

⇒ 5xy + 9yz + 3zx + 5x - 4y