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