Question

solve the system of equations algebraically. if a solution does not exist, so state....
y=2x-9
y=-3x-9
y=(1/2)x-9

Answer 1

Try to use substition. y= 2x-9, and y=-3x -9. When you set the two to equal each other, does the solution make sense?

Answer 2

Well, well, well..... x=0, i'm sure you could use this to find what y is.