Respuesta :

Answer: 10x + 19

Step-by-step explanation:

Because we don't know what x equals, and theres no indication of what this expression equals, the most we can do is simplify.

First, use distributive property:

4x + 28 + 6x - 9

Next, add like terms: 4x and 6x are like terms, 28 and -9 are also like terms.

4x + 6x = 10x

28 + -9 = 19

10x + 19 is the simplest form we can go.