Respuesta :

ImurGirlfriend53
The product of 3 and a number is 3x since the number isn't specified we use a variable in place of the number.
downundergirl
The product of 3 and a number can be written as 3 times x, 3x or 3·x. 

I hope this is what you were looking for, let me know if i can be of any further assistance.