Respuesta :

Answer:

0

Step-by-step explanation:

If 4x + b = 4x, then b = ?

Let's solve!

4x + b = 4x

Minus 4x on both sides

b = 4x - 4x

b = 0

We can check, does 4x + 0 = 4x?

Yes, it works.

Hope this helps :)

Have a nice day!