9773 + x = 13200, then x is ?	Answers:
A) 3427  B) 3237  C) 3337  D) 2337  E) None of these
3427nswer   x = 13200 - 9773= 
<gadget id="calculator">13200 - 9773</gadget>
<output>3_427</output>
3427   Option: 3427
<result>A</result>
9773 + x = 13200, then x is ?