Respuesta :

Dead3ill

Answer:

x= 10

Step-by-step explanation:

Let the number be 'x'.

According to the question,

[tex]3x + 10 = 6x - 20[/tex]

[tex] = > 6x - 3x = 20 + 10[/tex]

[tex] = > 3x = 30[/tex]

[tex] = > x = \frac{30}{3} = 10[/tex]