Answer :
In a coincidental system both equations are the same. I try to transform one equation into the other:
2 x + 3 y = -17 /*6
12 x + 18 y = -102
18 y = -12 x - 102
2 x + 3 y = -17 /*6
12 x + 18 y = -102
18 y = -12 x - 102