9x + 3y - 6 - 5x + 4y - 3
To simplify the expression 9x + 3y - 6 - 5x + 4y - 3, we can combine like terms:
9x - 5x + 3y + 4y - 6 - 3 = (9x - 5x) + (3y + 4y) + (-6 - 3) = 4x + 7y - 9.
9x - 5x + 3y + 4y - 6 - 3 = (9x - 5x) + (3y + 4y) + (-6 - 3) = 4x + 7y - 9.