'..s=-1,:.r=2is your answer
2r + 8s = -41
7r = -6s + 8
7r+6s=8.. 2
multiplying equation 1 by 3 and equation 2 by 4
and subtracting equation 1 from equation 2
28r+24s=32
6r+24s=-12
-
22r=32--12
22r=44
r=44/22=2
:.r=2
again multiplying equation 1 by 7 and equation 2_by 2
and subtracting equation 2 from 1
14r+56s=-28
14r+12s=16
-
44s=-28-16
44s=-44
s=-44/44=-1
:.s=-1