Jill was solving a system using the elimination method. After she added the equations together, she got 5=7.What does this mean for the system? Pls help!

Find the values of y: 3y^3(y^2+ 2/3y)=0

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.