WordPress: Combine meta_query and tax_query

query.php

<?php

$terms = [];

$args = [
	'post_type' => 'your_post_type', // change this
	'tax_query' => [
		[
			'taxonomy' => 'your_taxonomy', // change this
			'terms' => $terms
		]
	],
	'meta_query' => [
		[
			'key'     => 'your_post_meta', // change this
			'value'   => 'your_value', // change this
		]
	]
];

$result = new WP_Query( $args );