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