Respuesta :

th3lastsh3riff

Answer:

6

Step-by-step explanation:

3+6=9 9x7=63

Wiiisdom

Answer: 6

Step-by-step explanation:

You can set the unknown number as x and then you would add 3 to x and multiply that by 7.

The equation would be 7(x+3)=63

7(x+3)=63

7x+21=63

7x=42

x=6

The answer is 6