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Verified answer
(fog)(x)= f(g(x))=f((x-2 )/(2x+1))
= 2 (x-2 )/(2x+1) - 1
= (2x-4 )/(2x+1) - (2x+1)/(2x+1)
= (2x-4 -2x - 1) /(2x+1)
= -5/ (2x+1)
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