Question

plz answer this question i will give thanks and mark as branilist ​

Answer 1

Answer:

4x+y-4z

Step-by-step explanation:

3x+5y-6z

x-4y+2z

4y+y-4z

Answer 2

$3x + 5y - 6z + x - 4y + 2z \\ = (3x + x) + (5y - 4y) + (2z - 6z) \\ = 4x + y - 4z$