simplift 9x+3y-6-5x+4y-3

To simplify the expression 9x + 3y - 6 - 5x + 4y - 3, we can combine like terms.

Combining the x terms, we have:

(9x - 5x) = 4x

Combining the y terms, we have:

(3y + 4y) = 7y

Combining the constants, we have:

(-6 - 3) = -9

Putting it all together, the simplified expression is:

4x + 7y - 9