3,7х + 2,5у +1,6х + 4,8у

To simplify the expression, we can combine like terms:

3.7x + 2.5y + 1.6x + 4.8y

Combine the x terms:

(3.7x + 1.6x) + 2.5y + 4.8y

5.3x + 7.3y

So the simplified expression is 5.3x + 7.3y.