3,7х + 2,5у +1,6х + 4,8у

To add the like terms in the expression 3.7x + 2.5y + 1.6x + 4.8y, we add the coefficients of x and y separately:

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

This simplifies to:

5.3x + 7.3y