Answer 1

3/x - 12/x - 3 = 1;

-9/x = 1+3;

-9/x = 4;

x = -9/4;

x = - 2(1/4).

 

Answer 2

  3/x-12/x-3=1 3/х-12/х=4 (3-12)/х=4 -9/х=4 х=-9/4 х=-2 1/4