Question

Which of the graphed systems share the same solution set?

Answer 1

Graph 3 ///////////////

Answer 2

The third graphic system shares the same set of solutions.
 Notice that the first graph is two parallel lines that never cut.
 The second graph has two lines that intersect at a point. Therefore, compare a single solution.
 The third graph shares the whole set of solutions since, for each x, both lines take the same Y value
 answer
 Third graphic.