USE RIGHT ARROW KEY TO SEE BOTH PAPERS! Remember M=Slope B= The Y-Intercept (Where the line crosses the Y axis on a graph) The Ordered pair I used was (1,4). I used 4 for the "Y" in y=mx+b and the 1 is "x"; the thing you are multiplying (The unknown). A normal equation to graph would be like this, y=7x+2 or y=-7x+2.
I'll make another tutorial tomorrow on how to Solve multi step equations with variables. Let me know if anything is Unclear!