Question

4 4/5*(х+0,28)=1 4/7​

Answer 1

Ответ:

$4 \frac{4}{5} \times (x + 0.28) = 1 \frac{4}{7} \\ \frac{16}{5} \times (x + \frac{7}{25} ) = \frac{4}{7} \\ \frac{16}{5} x + \frac{112}{125} = \frac{4}{7} \\ 2800x + 784 = 500 \\ 2800x = 500 - 784 \\ 2800 x = - 284 \\ x = - \frac{71}{700}$