$$3^{x-1}+3^{3-x}=6$$ , then what is $$2^{x-1}+2^{3-x}$$   equal to ?

‘.’ 3 + 3 = 6

     So, x-1=1 and 3-x=1

      x=2     

 Putting value of x in required equation.

     2+2=4 (Ans)