A decision taken by mutual agreement is a decision taken by unanimity of the Member States participating to the vote, i.e. abstentions do not prevent the decision from being adopted.
Vastastikusel kokkuleppel tehtav otsus tehakse ühehäälselt hääletamisel osalevate liikmesriikide poolt, s.t hääletamisest hoidumine ei takista otsuse vastuvõtmist.