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ashwni kumar
Answers (1)
see the correct and easy way is like this : y=3x +12 now get x in terms of y 3x =y-12 or x= (y-12)/3 now replace x with y and vice versa so you will get : y= (x-12)/3 or f-1(x)= x/3 - 4 this should be the answer
