Question

вот это плиссссссссс​

Answer 1

Пошаговое объяснение:

решение в приложении......

Answer 2

$6) - \frac{11}{21} x + 2 = \frac{10}{21} x - 9 \\ - \frac{11}{21}x - \frac{10}{21} x= 9 - 2 \\ - \frac{ 21}{21} x = 7 \\ - x = 7 \\ x = - 7 \\ 8) - \frac{14}{15} x + \frac{9}{10} = \frac{1}{30}x + \frac{2}{3} \\ \frac{14}{15} x - \frac{1}{30} x = \frac{2}{3} - \frac{9}{10} \\ \frac{28}{30} x - \frac{1}{30} x = \frac{2 \times 10 - 9 \times 3}{30} \\ \frac{27}{30} x = \frac{20 - 27}{30} \\ \frac{27}{30}x = \frac{3}{30} \\ x = \frac{3}{30} \div \frac{27}{30} \\x = \frac{3}{30} \times \frac{30}{27} \\ x = \frac{3}{27} = \frac{1}{9}$