gistfile1.txt

public static List<Account> getMembersForHousehold(Id householdId){
        List<Id> contactIds = new List<Id>();
        //collect contactIds (persons) from ACRs
        for(AccountContactRelation acr : [SELECT ContactId FROM AccountContactRelation 
                                                WHERE AccountId = :householdId 
                                                AND Account.RecordTypeId =: myAccountHousholedRecordId]){
            contactIds.add(acr.ContactId);
        }

        //collect accountId from contact
        List<Id> accountIds = new List<Id>();
        for(Contact con : [SELECT AccountId FROM Contact WHERE Id IN :contactIds]){
            accountIds.add(con.AccountId);
        }

        List<Account> accounts = [SELECT Id,Name FROM Account WHERE Id IN: accountIds];
}