**Source Code:**

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Program: Solution of Linear algebraic equationsusing Gauss Elimination methodLanguage used: CProgram written by Bibek Subedi*****************************************************/#include<stdio.h>int main(){double matrix[10][10],a,b, temp[10];int i, j, k, n;printf("Enter the no of variables: ");scanf("%d", &n);printf("Enter the agumented matrix:\n");for(i = 0; i < n ; i++){for(j = 0; j < (n+1); j++){scanf("%lf", &matrix[i][j]);}}for(i = 0; i < n; i++){for(j = 0; j < n; j++){if(j>i){a = matrix[j][i];b = matrix[i][i];for(k = 0; k < n+1; k++){matrix[j][k] = matrix[j][k] - (a/b) * matrix[i][k];}}}}printf("The Upper triangular matrix is: \n");for( i = 0; i < n; i++){for(j = 0; j < n+1; j++){printf("%.2f", matrix[i][j]);printf("\t");}printf("\n");}printf("\nThe required result is: ");for(i = n-1; i>=0; i--){b = matrix[i][n];for(j = n-1 ; j > i; j--){b -= temp[n-j]*matrix[i][j];}temp[n-i] = b/matrix[i][i];printf("\n%c => %.2f",97+i, temp[n-i]);}}

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