Respuesta :

Answer:

X=4

Step-by-step explanation:

In the equation, you have to subtract 5 from both sides.

4x + 5 = 21

     -5      -5

4x=16

Then you gotta get rid of the X so divide the 4 from both sides. That gets you X=4

Answer:

x=4

Step-by-step explanation:

21-5=16

16/4=4