Is it possible to use WP Query to orderby custom meta value and custom taxonomy?

by

I have the similar query in my blog. This my args array :

$args= array(
    'post_type' => 'box',
    'posts_per_page' => -1,
    'meta_key' => 'position',
    'order' => 'DESC',
    'orderby' => 'meta_value_num',
    'tax_query' => 
        array(
            array(
                'taxonomy' => 'taxonomyname',
                'field' => 'slug',
                'terms' => 'yourterm'
            )
        )
);

Hope it will help you