ПОМОГИТЕ СРОООЧНОО!
[tex]\frac{3x+7}{5x-1}+\frac{5x-1}{3x+7}=5,2[/tex]

(3x+7)/(5x-1)=t≠03x+7≠0;x≠-7/35x-1≠0;x≠1/5;x≠0,2t+1/t=5,2t²-5,2t+1=0D/4=6,76-1=5,76t=(2,6±2,4)t1=5;t2=0,21)(3x+7)/(5x-1)=5x=6/112)(3x+7)/(5x-1)=0,2x=-3,6