double a, b, c, d, e, f, g, h, i, j, k, l, x;
double k1, k2, k3, k4, k7, k8, bobot1 = 0, bobot2 = 0, bobot3 = 0, bobot4 = 0, bobot7 = 0, bobot8 = 0;
double hasil;
...