The Problem
Take any equation and graph both sides of the equation.
For example, if you are trying to solve the equation 3x - 4
= 11, graph y1 = 3x - 4 and graph y2 = 11. How can you
identify the solution to the equation on the graph?

The Solution

Using graphing calculator, we can look at the graphic representation of the given equations.



If we look closely, we can see that all of the graphs intersect at the point (5,11). Since we are given in the problem that y=11, then we can solve to find that x=5, which is supported by the graph above.