Question

6 2/7- 3 5/7- x =1 1/7

Answer 1

вот ответ)))) вроде бы так))

Answer 2

$6 times frac{2}{7} - 3 times frac{5}{7} - x = frac{11}{7}$
$frac{44}{7} - frac{26}{7} - x = frac{11}{7}$
$44 - 26 - 7x = 11$
$- 7x = 11 -18$
$- 7x = -7$
$x = 1$