Respuesta :

Answer:

a

Step-by-step explanation:

Given

5x - 20 = 0 ( add 20 to both sides )

5x = 20 ( divide both sides by 5 )

x = 4 ← is the zero → (a)

sarahwallace145
the answer is a)4

how i got 4:
1) 5x-20=0 add 20 to both sides
2)5x=20 divide 5
3) 20/5 =4