||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
A=matrix(QQ, [[0,8,2],[3,5,2],[6,2,8]])
print A
b=vector([-7,8,26])
B=matrix([b])
C=A.augment(B.transpose())
print C
C.add_multiple_of_row(2,1,-2)
print C
C.add_multiple_of_row(2,0,1)
print C
C.rescale_row(2, 1/6)
print C
C.rescale_row(0,1/8)
print C
C.rescale_row(1,1/3)
print C
z=C[2,3]
y=C[0,3]-C[0,2]*z
x=C[1,3]-C[1,1]*y-C[1,2]*z
print x,y,z
}}}

/* code_ends */

 * '''Solution by''': 
   * <Sri Valli>, <Student>, <SNIST>
   *  <Krishna>, <Student>, <SNIST>