Combine the like terms of the linear expression: 18 - 5x + 7x - 9y + 3 - 2y.

2x - 11y + 21

Step-by-step explanation:

First, I would rewrite the equation so that like terms are right next to each other.

-5x + 7x - 9y - 2y + 18 + 3

Now, complete the operations like normal.

-5x + 7x = 2x

-9y - 2y = - 11y

18 + 3 = 21

Since you cannot simplify anymore as there are no like terms left to combine, you are left with your equation and final answer:

2x - 11y + 21

Once you combine all the like terms you will be left with this

2x-11y=21