Question

2 2/11х-5/16=1 3/4
4 2/9х+3 5/14= 6 11/21

Answer 1

Ответ:

$2 \frac{2}{11} x - \frac{5}{16} = 1 \frac{3}{4} \\ \frac{24}{11} x - \frac{5}{16} = \frac{7}{4} \\ 384x - 55 = 308 \\384x = 308 + 55 \\ 384x = 363 \\ x = \frac{121}{128} \\ 4 \frac{2}{9} x \times 3 \frac{5}{14} = 6 \frac{11}{21} \\ \frac{38}{9} x \times \frac{47}{14} = \frac{137}{21} \\ \frac{19}{9} x \times \frac{47}{7} = \frac{137}{21} \\ \frac{893}{63} x = \frac{137}{21} \\ x = \frac{411}{893}$