[0] == 0.0 && system_3_eq_2[1] == 1.0) {
        document.getElementById('step_name').innerHTML = "It's already solved!";
    } else if (system_3_eq_2[1] != system_3_eq_1[1] && system_3_eq_2[1] != 1.0 && system_3_eq_1[1] != 0) {
        document.getElementById('step_name').innerHTML = "Divided the 2nd equation by its 2nd coefficient.";
        system_3_eq_2[0] /= system_3_eq_2[1];
        system_3_eq_2[2] /= system_3_eq_2[1];
        system_3_eq_2[1] = 1.0;
    } else if (system_3_eq_2[1] != system_3_eq_1[1