Question 13381
To solve this equation, you need to first distribute the -3 across the (2x-1).  This gives you {{{13-6x+3=4}}}.  At this point, all equations are solved with the same basic 3 steps:

1.  Combine like terms.  In your equation, this gives you {{{16-6x=4}}}.

2.  Get everything with an x on one side of the equal sign, and everything without an x on the other side of the equal sign.  This gives you {{{-6x=-12}}}.

3.  Solve for x.  In this case, you will get x=2.