Question 433708
r=6 s=5
multiply the first by 3 and the second by 2
2r - 3s =-3
6r-9s=-9
3r+2s=28
6r+4s=56

6r-9s=-9
6r+4s=56
subtract
-9s-4s=-9-56
-13s=-65
s=5
2r-3s=-3
2r-3*5=-3
2r-15=-3
2r=12
r=6