Respuesta :

Answer:

10x - 5

Step-by-step explanation:

7x - 9 + 3x + 4

7x + 3x - 9 + 4

10x - 5

jordan505379

Answer: 10x-5

Step-by-step explanation:

Combine 7x and 3x. That’s 10x.

Then combine -9 and 4. That would be -5.

Add -5 to 10x. The answer is 10x-5