One less than three times a number is seven

Answer 1

Not sure of your actual question here, but if you are looking for the numeric version it would be 3x-1=7.

If you want to solve for x you have to get x alone on one side of the equation. To do so follow the next steps:

3x-1=7

3x-1+1=7+1 (-1+1 cancels itself out)

3x=8

x/3=8/3

x=8/3