Rioting and Soothing are subtle arts. The most effective Mistings being those who can riot or soothe an emotion without being noticed. Soothing all but one emotion and rioting that same emotion would undoubtedly reveal the mistborn/mistings touch. Vin however, was exceptionally skilled and would sometimes help Elend by soothing his insecurity and rioting his confidence. This may be why she was so much better than Breeze who could only soothe emotions away and hope whatever emotion was left was strong enough to encourage action. So in answer to your question I would say it is definitely possible, but will only be effective when done by a Mistborn or a highly trained group of Mistings (like Breeze's group at the hideout) who is controlling both metals.
MistGyorn's post in Rioting and Soothing was marked as the answer