Over the last three evenings, yoko received a total of 73 phone calls at the call center. the third evening, she received 3 times as many calls as the first evening. the second evening, she received 7 fewer calls than the first evening. how many phone calls did she receive each evening?

The first evening she received x calls.
The second evening she received 7 fewer calls than the first evening, so she received x-7 calls.
The third evening she received 3 times as many calls as the first evening, so she received 3x calls.
Over the three evenings she received 73 calls altogether.



The first evening she received 16 calls, the second evening she received 9 calls, the third evening she received 48 calls.