Question

помогите пожалуйста
уравнения с смешеными дробями.извините что перевернуто.

Answer 1

$\frac{5}{9} x=1 \frac{1}{3} \\ \frac{5}{9} x= \frac{4}{3} \\ x= \frac{4}{3} * \frac{9}{5} \\ x= \frac{12}{5} \\ x=2 \frac{2}{5} \\ \\ \frac{7}{12} :y=- \frac{2}{3} \\ y= \frac{7}{12} *(- \frac{3}{2} ) \\ y=- \frac{7}{8} \\ \\ 2 \frac{1}{14} -1 \frac{2}{3} x=1 \frac{5}{21} \\ 1 \frac{2}{3} x=2 \frac{1}{14} -1 \frac{5}{21} \\ 1 \frac{2}{3} x= \frac{29}{14} - \frac{26}{21} \\ \frac{5}{3}x= \frac{87-52}{42} = \frac{35}{42}= \frac{5}{6} \\ x= \frac{5}{6} * \frac{3}{5} \\ x= \frac{1}{2}$$\\ \\ ( \frac{8}{15} + \frac{2}{9} y): \frac{3}{5} =2 \\ \frac{8}{15} + \frac{2}{9} y=2* \frac{3}{5} \\ \frac{8}{15} + \frac{2}{9} y= \frac{6}{5} \\ \frac{2}{9} y= \frac{6}{5} - \frac{8}{15} \\ \frac{2}{9} y= \frac{18-8}{15} = \frac{10}{15}= \frac{2}{3} \\ y= \frac{2}{3} * \frac{9}{2} \\ y=3$
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 $\frac{7}{12}y=1 \frac{1}{4} \\ y= \frac{5}{4} * \frac{12}{7} \\ y= \frac{15}{7} \\ y=2 \frac{1}{7} \\ \\ \frac{5}{16} :z= \frac{3}{4} \\ z= \frac{5}{16} * \frac{4}{3} \\ z= \frac{5}{12} \\ \\ 3 \frac{1}{15}-1 \frac{14}{15}a= \frac{1}{6} \\ 1 \frac{14}{15}a=3 \frac{1}{15} - \frac{1}{6} \\ 1 \frac{14}{15} a= \frac{46}{15} - \frac{1}{6} \\ \frac{29}{15} a= \frac{92-5}{30} = \frac{87}{30} \\ a= \frac{87}{30} * \frac{15}{29} \\ a= \frac{3}{2} =1 \frac{1}{2}$[/tex]
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$( \frac{7}{18} + \frac{5}{24}z):3 \frac{2}{3} = \frac{1}{3} \\ \frac{7}{18} + \frac{5}{24}z= \frac{1}{3} *3 \frac{2}{3} \\ \frac{7}{18} + \frac{5}{24}z= \frac{1}{3}* \frac{11}{3} \\ \frac{7}{18} + \frac{5}{24}z= \frac{11}{9} \\ \frac{5}{24} z= \frac{11}{9} - \frac{7}{18} \\ \frac{5}{24}z= \frac{22-7}{18} \\ \frac{5}{24} z= \frac{15}{18}= \frac{5}{6} \\ z= \frac{5}{6} * \frac{24}{5} \\ z=4$