Question

use code blocks to write a code that

a) solves linear, 2- variable simultaneous equation using the elimination method.

Answer 1

CODE FOR SOLVING SYSTEM OF LINEAR EQUATION IN TWO VARIABLE BY ELIMINATION METHOD

#include<stdio.h>

int main()

{

int i,j,k,n;

float A[20][20],c,x[10],sum=0.0;

printf("\nEnter the order of matrix: ");

scanf("%d",&n);

printf("\nEnter the elements of augmented matrix row-wise:\n\n");

for(i=1; i<=n; i++)

{

for(j=1; j<=(n+1); j++)

{

printf("A[%d][%d] : ", i,j);

scanf("%f",&A[i][j]);

}

}

for(j=1; j<=n; j++) /* loop for the generation of upper triangular matrix*/

{

for(i=1; i<=n; i++)

{

if(i>j)

{

c=A[i][j]/A[j][j];

for(k=1; k<=n+1; k++)

{

A[i][k]=A[i][k]-c*A[j][k];

}

}

}

}

x[n]=A[n][n+1]/A[n][n];

/* this lo…