X=1 (5 3/5+4 2/5)*x-(7 1/9-5 10/9)=
Х=(5 3/5+4 2/5)*х -(7 1/9-5 10/9) 5 3/5+4 2/5=10 7 1/9-5 10/9=6 10/9-5 10/9=1 х=10х-1 10х-х=1 9х=1 х=1/9