Question 1092973
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= 6a - 4b.




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Dear "students" !


Today is a special day.

Today I solved  16  problems for you and got back  0  (zero,  ZERO)  "thanks"  from you.


It is the absolute record ! 
    It is just out of limits of my understanding  !
        I never saw it before  !


Thank you very much and wish you to think: &nbsp;&nbsp;<U>WHO ARE YOU . . . </U>