Question

(7,8 - х) * 4,3 = 11,18 рішенія
(х + 16,31) : 35,2 = 1,7

Answer 1

Ответ:

$1)x = 5.2 \\ 2)43.53$

Пошаговое объяснение:

$1)(7.8 - x) \ast 4.3 = 11.18 \\ 33.54 \ast 4.3x = 11.8 \\ -4 x = 11.18 - 33.54 \\ - 4.3x = - 22.36 \\ x = - 22.36 \div ( - 4.3) \\ x = 5.2$

$2)(x + 16.31) \div 35.2 = 1.7 \\ (x + \frac{1631}{100} ) \div \frac{176}{5} = \frac{17}{10} \\ (x + \frac{1631}{100} ) \ast \frac{5}{176} = \frac{17}{10} \\ \frac{5}{176} x + \frac{1631}{3520} = \frac{17}{10} \\ 100x + 1631 = 5984 \\ 100x = 5984 - 1631 \\ 100x = 4353 \\ x = 4353 \div 100 \\ x = 43.53$

Или

$\frac{4353}{100}$