Question

7 2/17 + ( х - 8/17) = 2 9/17

Answer 1

Ответ:

$- \frac{70}{17}$

Пошаговое объяснение:

$7 \frac{2}{17} + (x - \frac{8}{17}) = 2 \frac{9}{17} \\ \frac{121}{17} + x - \frac{8}{17} = \frac{43}{17} \\ \frac{113}{17} + x = \frac{43}{17} \\ x = \frac{43}{17} - \frac{113}{17} \\ x = - \frac{70}{17}$