РЕШИТЕ УРАВНЕНИЕ:
1 5/7 х Х - 5\9 = 2 4\9

[tex]1 \frac{5}{7} * x- \frac{5}{9} = 2 \frac{4}{9} \\ 1 \frac{5}{7} x = 2 \frac{4}{9} +\frac{5}{9} \\ 1 \frac{5}{7} x = 3 \\ x = 3 :1 \frac{5}{7} \\ x= 1 \frac{3}{4} [/tex]

[tex]1 \frac{5}{7} x- \frac{5}{9} =2 \frac{4}{9} \\ \\ 1 \frac{5}{7} x= \frac{5}{9} +2 \frac{4}{9} \\ \\ 1 \frac{5}{7}x =2 \frac{9}{9} \\ \\ 1 \frac{5}{7} x=3\\ \\ x=3: \frac{12}{7} \\ \\x= \frac{3*7}{12} \\ \\x= \frac{7}{4} \\x=1.75[/tex]