Respuesta :

leena

Hey there! :)

Answer:

A. x = 5.

Step-by-step explanation:

Starting with:

4x + 1 = 21

Subtract 1 from both sides:

4x + 1 - 1 = 21 - 1

4x = 20

Divide both sides by 4:

4x/4 = 20/4

x = 5.

Answer:

A.X=5

Step-by-step explanation:

4x+1=21

    -1=-1

4x=20

4x/20 = 5

or just plug in five for x and you get 21