Respuesta :

Answer:

x = 8

Step-by-step explanation:

3x - 20 = 4

add 20 to both sides

3x - 20 + 20 = 4 + 20

3x = 24

divide both sides by 3

[tex]\frac{3x}{3}[/tex] = [tex]\frac{24}{3}[/tex]

x = 8