3xy + 2xz + yz + 2xy − 4xz + 5yz​?

The given expression is: 3xy + 2xz + yz + 2xy - 4xz + 5yz

To simplify, we can group like terms and combine them:

(3xy + 2xy) + (2xz - 4xz) + (yz + 5yz)

= 5xy + (-2xz) + 6yz

= 5xy - 2xz + 6yz

Therefore, the simplified expression is 5xy - 2xz + 6yz.