Question

Решите уравнение. плииз​

Answer 1

$(x-3\frac{13}{21}) + 2\frac{10}{21} = 7\frac{2}{12}$

$(x-\frac{76}{21}) + \frac{52}{21} = \frac{86}{12}$

$x-\frac{76}{21} + \frac{52}{21} = \frac{86}{12}$

$x = \frac{86}{12} + \frac{76}{21} - \frac{52}{21}$

$x = \frac{86}{12} + \frac{76-52}{21}$

$x = \frac{86}{12} + \frac{24}{21}$

$x = \frac{43}{6} + \frac{8}{7}$

$x = \frac{301}{42} + \frac{48}{42}$

$x = \frac{349}{42} =8\frac{13}{42}$

Ответ: $8\frac{13}{42}$