solve
17-9x=18y
12y=11-6x
rearrange things a bit and you get
9x+18y = 17
6x+12y = 11
multiply the top by 2 and the bottom by 3 and you get
18x+36y = 34
18x+36y = 33
The two lines are parallel, so there are no solutions.
17-9x=18y
12y=11-6x
9x+18y = 17
6x+12y = 11
multiply the top by 2 and the bottom by 3 and you get
18x+36y = 34
18x+36y = 33
The two lines are parallel, so there are no solutions.