Question

Решите уравнения пж... ​

Answer 1

Ответ:

$\frac{12}{5x} =3\frac{1}{5}$

$\frac{12}{5x} =\frac{9}{5}$

45x=60

x=$\frac{60}{45}$=$\frac{4}{3}$

$\frac{2}{9} x+1\frac{7}{9} =3\frac{1}{12}$

$\frac{2}{9} x=3\frac{1}{12} -1\frac{7}{9}$

$\frac{2}{9}x=\frac{37}{12} -\frac{16}{9}$=$\frac{111-64}{36}$

$\frac{2}{9} x=\frac{47}{36}$

x=$\frac{47}{36}$:$\frac{2}{9}$=$\frac{47}{36} *\frac{9}{2}$=$\frac{47}{8}$

x=5$\frac{7}{8}$

Объяснение: