3/5(7/9*х-1/3)=х-7/3
3/5*7/9*х-3/5*1/3=х-7/3
7/15*х-1/5=х-7/3
7/15*х-15/15*х=1/5-7/3
-8/15*х=(3-35)/15. |•15
-8х=-32
х=32:8
х=4
Объяснение:
3/5(7/9*х-1/3)=х-7/3
3/5*7/9*х-3/5*1/3=х-7/3
7/15*х-1/5=х-7/3
7/15*х-15/15*х=1/5-7/3
-8/15*х=(3-35)/15. |•15
-8х=-32
х=32:8
х=4
Объяснение: