Equation_solver.c

// With the help of this code we can find the solution of linear equation having two variable ..(also two equations )

/*Here in this code we are taking two equation as 1) aA + bB = w  and 2) xA + yB = v

  by this  two equation we are going to find the values of two variable  A & B
*/

#include <stdio.h>
#include <conio.h>
#include <math.h>

// This is function to find the values of variable and print them using main function ..

float Equationsolve(int c, int d, int e, int f, int g, int h)
{
    float A, B;

    if (d * f == g * c)
    {
        if ((d * h == g * e) || (c * h == f * e))
        {
            printf("The system of linear equations have many solutions.\n");
        }
        else
        {
            printf("The system of linear equation have no solutions.\n");
        }
    }
    else
    {
        if (d * f != g * c)
        {
            printf("The system of linear equation have Unique solutions.\n");

            A = ((d * h - g * e)) * 1.0 / ((d * f - g * c)) * 1.0;
            B = ((c * h - f * e)) * 1.0 / ((c * g - f * d)) * 1.0;

            printf("A is = %f\nB is = %f", A, B);
        }
        else
        {
            printf("Error\n");
        }
    }
    return 0;
}

int main()
{

    // taking six constants  as there are two equations we need three-three constants per equation ..

    int a, b, w, x, y, v;

    // Taking  input for the constant of first equation named a ,b and w

    printf("Enter value of constant a , b and w : ");
    scanf("%d%d%d", &a, &b, &w);

    // It will gonna print the  first equation ..

    printf("Equation first is %dA + %dB = %d\n", a, b, w);

    // Taking  input for the constant of second equation named x, y and v

    printf("Enter value of constant x , y and v  : ");
    scanf("%d%d%d", &x, &y, &v);

    // It will gonna print the second equation ..

    printf("Equation second is %dA + %dB = %d\n", x, y, v);

    // Here we are recalling the above function we made to print the values of variable using main function ....

    Equationsolve(a, b, w, x, y, v);

    return 0;
}