Question 282798

1.8x + 1.2y = 4
  9x + 6y = 3
multiply first by -5
-9x-6y=-20
 9x+6y=3
add both equations
0=-17
There are no solutions.
They are parallel

-a/b=slope
-1.8/1.2=-3/2
-9/6=-3/2
The slopes are the same