Respuesta :

Space

Answer:

13x + 5y

Step-by-step explanation:

Step 1: Set up expression

(6x + 9y) + (7x - 4y)

Step 2: Combine like terms

6x + 7x = 13x

9y - 4y = 5y

13x + 5y

Answer:

The answer of (6x+9y)+(7x-4y) is 13x+5y.