Question

Поогите дам 100 баллов номер 751 пж помогите

Answer 1

1)
$1.8 - ( 2 frac{3}{5} - (x - 1.2)) = 3 \ frac{18}{10} - ( frac{13}{5} - x + frac{12}{10} ) = 3 \ frac{18}{10} - frac{13}{5} + x - frac{12}{10} = 3 \ x = frac{3}{1} - frac{18}{10} + frac{13}{5} + frac{12}{10} \ x = frac{30 - 18 + 26 + 12}{10} \ x = frac{50}{10} \ x = 5$
Ответ: В.

2)

$1.9 - (5 frac{3}{4} - (x + 1)) = 3.15 \ frac{19}{10} - ( frac{23}{4} - x - 1) = frac{315}{100} \ frac{19}{10} - frac{23}{4} + x + 1 = frac{315}{100} \ x = frac{315}{100} - frac{19}{10} + frac{23}{4} - 1 \ x = frac{315 - 190 + 575 - 100}{100} \ x = frac{600}{100} \ x = 6$
Ответ: D.