27/5:3/4-42/5*x:3/4+4 3/5=9
36/5-56/5*х+23/5=9
59/5-56/5*х=9
11 4/5-9=56/5*х
2 4/5=56/5*х. 14/5=56/5*х. х=14/5:56/5. х=14/5*5/56. х=1/4
(5 2/5-8 2/5*x):3/4=4 2/5
5 2/5-8 2/5*x=4 2/5*3/4=22/5*3/4=33/10=3,3
8,4x=5,4-3,3
8,4x=2,1
x=2,1:8,4
x=0,25
27/5:3/4-42/5*x:3/4+4 3/5=9
36/5-56/5*х+23/5=9
59/5-56/5*х=9
11 4/5-9=56/5*х
2 4/5=56/5*х. 14/5=56/5*х. х=14/5:56/5. х=14/5*5/56. х=1/4