Respuesta :

Answer:

4x+5

Step-by-step explanation:

1. You collect all the like-terms together which would be 7x and 3x

so it would be 7x-3x which would be 4x

since 7-3=4

them we collect 4x and 5 and we get 4x+5

make sure you write the variable answer first    

Hope this helps and answers your question! Have a great day/night!