Решите:
x+5/2x-6=1/4; 2-x/15-x=8; 2/x+3=2x-1/x^2

1) x+5/2x-6=1/4 2x-6=4*(x+5)2x-6=4x+20-2x=26x=-132)2-x/15-x=82-x=8*(15-x)2-x=120-8x7x=118x=118/73) 2/x+3=2x-1/x^22x-1/x^2-2/x=32x-1-2x/x^2=3-1/x^2=33x^2=-1x^2=1/3x= корень от 1/3