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

/* code_begins */

{{{
A=matrix([[1,-1],[3,6]])
B=vector([0,18])
x=A.solve_right(B)
print x
var ('x,y')
n=implicit_plot(x-y==0,(x,-2,2),(y,-2,2))
show(n)
}}}

/* code_ends */

 * '''Solution by''': 
   * sneha,student,pec
   * divya,student,pec