Question

ПОМОГИТЕ СРОЧНО
Проооглллллгшоппрнн

Answer 1

$\frac{2}{5} - y = - \frac{3}{7} \\ - y = - \frac{3}{7} - \frac{2}{5} \\ - y = - \frac{29}{35} \\ y = \frac{29}{35 } \\ \\ 2) \: b + 2 \frac{4}{11} = \frac{2}{3} \\ b + \frac{26}{11} = \frac{2}{3} \\ b = \frac{2}{3} - \frac{26}{11} \\ b = - \frac{56}{33} \\ b = - 1 \frac{23}{33} \\ \\ \\ 3) \: a + 4 \frac{5}{12} = - 3 \frac{1}{9} \\ a + \frac{53}{12} = - \frac{28}{9} \\ a = - \frac{28}{9} - \frac{53}{12} \\ a = \frac{271}{36} \\ a = - 7 \frac{19}{36} \\ \\ \\ 4) \: 1 \frac{4}{15} - x = 2 \frac{5}{8} \\ \frac{19}{15} - x = \frac{21}{8} \\ - x = \frac{21}{8} - \frac{19}{15} \\ - x = \frac{163}{120} \\ x = - \frac{163}{120} \\ x = - 1 \frac{43}{120}$