Answer :

luana
[tex]*\\
x-\ number\\\\ \frac{x}{3}-4=20\ \ \ \ |Multiply\ by\ 3\\\\ x-12=20\ \ \ \ |Add\ 12\\\\ x=32\\\\Number\ is\ equal\ to\ 32.[/tex]
Let, the number be "a"

Now, according to the question,
[tex] \frac{a}{3} - 4=20 [/tex]

[tex] \frac{a-12}{3} =20 [/tex]

[tex]a-12 =20*3 [/tex]

[tex]a-12=60[/tex]

[tex]a = 60 + 12[/tex]

[tex]a = 72[/tex]


So, the number is 72