simplify

4x-5y+9+3x+8y-7

7x+3y+2

To simplify the expression 4x - 5y + 9 + 3x + 8y - 7, you can combine like terms.

First, combine the coefficients of x and y:

4x + 3x = (4 + 3)x = 7x
-5y + 8y = (-5 + 8)y = 3y

Next, combine the constant terms:

9 - 7 = 2

Putting it all together, the simplified expression is:

7x + 3y + 2