Question 742532

{{{(a/b)^(x-1)=(b/a)^(x-3)}}}.............. since {{{(b/a)^(x-3)=(a/b)^(-(x-3))}}}


{{{(a/b)^(x-1)=(a/b)^(-(x-3))}}}


{{{(x-1)=-(x-3)}}}


{{{x-1=-x+3}}}


{{{x+x=1+3}}}


{{{2x=4}}}

{{{x=2}}}