I have an equation in the form $$y = mx+b$$. In block diagram form, I could draw this with a proportional gain block and a summer. I was wondering if there are some clever tricks where I can make this equation with just a proportional block, as it is often times much simpler to deal with a bunch of series connected blocks rather than including summing junctions and what not. For the sake of argument, let's say for example the equation I have is $$y = 5x+2$$.
All comments are appreciated.