Ответ:

1)

[tex]2x = \frac{5}{8} [/tex]

[tex]2x \div 2 = \frac{5}{8} \div 2[/tex]

[tex]x = \frac{5}{8} \times \frac{1}{2} [/tex]

[tex]x = \frac{5}{16} [/tex]

2)

[tex] \frac{7}{12} x - \frac{5}{18}x = \frac{22}{9} [/tex]

[tex]21x - 10x = 88[/tex]

[tex]11x = 88[/tex]

[tex]x = 8[/tex]