Send answer of question 27

27 .       I f   a b   =   5 7   t h e n   t h e   v a l u e   o f   63 a   -   2 b 18 b   -   14 a   i s   e q u a l   t o  

Dear Student,
Here is the solution of your asked query:
63a-2b18b-14a=63ab-2bb18bb-14ab                   {Dividing numerator and denominator by b}=63ab-218-14ab=63×57-218-14×57                                  {putting ab=57}=45-218-10=438
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