Решите уравнение.
1) $(2\frac{9}{59} - a) - \frac{16}{59} = 1\frac{5}{59}$;
2) $3\frac{4}{9} - (x - 1\frac{7}{9}) = 2\frac{2}{9}$;
3) $10\frac{6}{10} - (7\frac{3}{10} - y) = 4\frac{9}{10}$;
4) $17\frac{18}{35} - (n + 4\frac{23}{35}) = 9\frac{12}{35}$.
$(2\frac{9}{59} - a) - \frac{16}{59} = 1\frac{5}{59}$
$2\frac{9}{59} - a = 1\frac{5}{59} + \frac{16}{59}$
$2\frac{9}{59} - a = 1\frac{21}{59}$
$a = 2\frac{9}{59} - 1\frac{21}{59}$
$a = 1\frac{68}{59} - 1\frac{21}{59}$
$a = \frac{47}{59}$
Ответ: $a = \frac{47}{59}$
$3\frac{4}{9} - (x - 1\frac{7}{9}) = 2\frac{2}{9}$
$x - 1\frac{7}{9} = 3\frac{4}{9} - 2\frac{2}{9}$
$x - 1\frac{7}{9} = 1\frac{2}{9}$
$x = 1\frac{2}{9} + 1\frac{7}{9}$
$x = 2\frac{9}{9}$
x = 3
Ответ: x = 3
$10\frac{6}{10} - (7\frac{3}{10} - y) = 4\frac{9}{10}$
$7\frac{3}{10} - y = 10\frac{6}{10} - 4\frac{9}{10}$
$7\frac{3}{10} - y = 9\frac{16}{10} - 4\frac{9}{10}$
$7\frac{3}{10} - y = 5\frac{7}{10}$
$y = 7\frac{3}{10} - 5\frac{7}{10}$
$y = 6\frac{13}{10} - 5\frac{7}{10}$
$y = 1\frac{6}{10}$
Ответ: $y = 1\frac{6}{10}$
$17\frac{18}{35} - (n + 4\frac{23}{35}) = 9\frac{12}{35}$
$n + 4\frac{23}{35} = 17\frac{18}{35} - 9\frac{12}{35}$
$n + 4\frac{23}{35} = 8\frac{6}{35}$
$n = 8\frac{6}{35} - 4\frac{23}{35}$
$n = 7\frac{41}{35} - 4\frac{23}{35}$
$n = 3\frac{18}{35}$
Ответ: $n = 3\frac{18}{35}$
Пожауйста, оцените решение