Question

ривняня 5.3\21-х=2.9\14​

Answer 1

Ответ:

$\frac{5.3}{21} - x = \frac{2.9}{14}$

$\frac{ \frac{53}{10} }{21} - x = \frac{ \frac{29}{10} }{14}$

$\frac{53}{210} - x = \frac{29}{140}$

$- x = \frac{29}{140} - \frac{53}{210}$

$- x = - \frac{19}{420}$

$x = \frac{19}{420}$