1/x^-1 somebody me solve this ill give reward to all who

x⁻¹ means (1/x).

So the fraction you wrote means  1 / (1/x),  which is just  'x'.

The thrill and the rush of excitement at having guided a seeker of truth
in his quest is reward enough.

All the same, however, what did you have in mind?

Multiply 9 and 67. then multiply 3 with 67. lastly the answer that you got for 9x67 is to be subtracted by the answer you got for 3x67