7x+2y-5x-3y

To simplify the expression \( 7x + 2y - 5x - 3y \), you can combine like terms.

1. Combine the \( x \) terms: \( 7x - 5x = 2x \)
2. Combine the \( y \) terms: \( 2y - 3y = -1y \) or simply \( -y \)

Putting it all together, we have:

\[ 2x - y \]

So, the simplified expression is \( 2x - y \).