Write SQL query to solve given problem: How many Yelp_Business in Arizona has user no. 3 reviewed?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T2.business_id) FROM Reviews AS T1 INNER JOIN Business AS T2 ON T1.business_id = T2.business_id WHERE T2.state LIKE 'AZ' AND T1.user_id = 3