Question

Решите уравнения
СРОЧНО!!!!!
Даю 30 баллов

Answer 1

а)

$x + 1 \frac{7}{9} = 2 \frac{4}{9} \\ x = 2 \frac{4}{9} - 1 \frac{7}{9} \\ x = \frac{22}{9} - \frac{16}{9} \\ x = \frac{6}{9} = \frac{2}{3}$

б)

$3 \frac{5}{8} - x = 1 \frac{3}{8} \\ - x = 1 \frac{3}{8} - 3 \frac{5}{8} = \frac{11}{8} - \frac{29}{8} \\ - x = - \frac{18}{8} = - 2 \frac{1}{4 } \\ x = 2 \frac{1}{4}$

в)

$x - 2 \frac{4}{11} = 4 \frac{1}{11} \\ x = 2 \frac{4}{11} + 4 \frac{1}{11} = \frac{26}{11} + \frac{45}{11} \\ x = 6 \frac{5}{11}$

г)

$2 \frac{7}{18} + x = 5 \frac{5}{18} \\ x = 5 \frac{5}{18} - 2 \frac{7}{18} = \frac{95}{18} - \frac{43}{18} \\ x = 2 \frac{8}{9}$

д)

$x + 3 \frac{7}{10} = 5 \frac{3}{10} \\ x = 5 \frac{3}{10} - 3 \frac{7}{10} = \frac{53}{10} - \frac{37}{10} \\ x = 1 \frac{3}{5}$

е)

$4 \frac{7}{12} - x = 3 \frac{5}{12} \\ - x = 3 \frac{5}{12} - 4 \frac{7}{12} = \frac{41}{12} - \frac{55}{12} \\ - x = - 1 \frac{1}{6} \\ x = 1 \frac{1}{6}$