#include<stdio.h>
#include<conio.h>
#include<math.h>
int main()
{
 int n,i,j;
 float a[10][10];
 float b[10],p,q,r;
 clrscr();
 printf("Enter the size of matrix");
 scanf("%d",&n);
 printf("Enter the elements");
 for(i=0;i<n;i++)
 {
  for(j=0;j<(n+1);j++)
  scanf("%f",&a[i][j]);
 }
 for(i=0,j=0;i<(n-1);i++,j++)
 {
  p=a[i][j];
  q=a[i+1][j];
  for(;i<n;i++)
  {
   for(;j<(n+1);j++)
   {
    a[i+1][j]=a[i+1][j]-((q/p)*a[i][j]);
   }
  }
 }
 for(i=n-1;i>=0;i--)
 {
  for(j=0;j<n-2;j++)
  {
   b[i]=a[i][j]*b[j];
  }
  b[i]=(a[n][n+1]-b[i])/a[n][n];
  printf("%f\n",b[i]);
  }
  getch();
  return 0;
}
 
 
 
 
 

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