Answer:
I attached a graph to the problem, so you can better understand why there is no solution to the system of equations:
The graph of the two lines shows that the two lines are parallel lines and never intersect. We know (even without writing the second equation in slope-intercept form) that parallel lines have the same slope and will never intersect, so the two lines have the same slope. Graphically, a system of equations can only have a solution, when the two lines intersect at one point or intersect at infinitely many points. Had the two lines had the same y-intercept, they would no longer be parallel lines, as they would overlap and thus would have infinitely many solutions. Because this is not the case, there are no solutions to the system of equations.