What is this equal 5x 2y 19 x - 2y -1?

The given expression is 5x + 2y + 19x - 2y - 1. To simplify this expression, we combine like terms. Combining the x terms gives us 24x (5x + 19x) and combining the y terms gives us 0y (2y - 2y). Therefore, the simplified expression is 24x - 1.