Răspuns :
101-(81/x-9)=101 (inmultim toata expresia cu x si obtinem:)
101x-(81-9x)=101x <=> 101x-101x-81+9x=0 <=> 9x=81 => x=9
101x-(81-9x)=101x <=> 101x-101x-81+9x=0 <=> 9x=81 => x=9