Usage patterns
〈事〉について取り決めるto make an arrangement/agreement about something
The two countries reached an agreement on trade.
取り決めを結ぶto conclude an agreement
The companies concluded a new agreement between them.
取り決めに従うto abide by an agreement
Everyone ended up abiding by that agreement.
取り決めを破るto break an agreement
The negotiations collapsed because one side broke the agreement.
〈人〉と取り決めを交わすto exchange/make an agreement with someone
We made an agreement with the client regarding pricing.