Question

помогите пожалуйста!!!!! ​

Answer 1

$8\dfrac{5}{7} - x = 4\dfrac{9}{14}\\\\\\-x = 4\dfrac{9}{14} - 8\dfrac{5}{7}\\\\\\-x = \dfrac{65}{14} - \dfrac{61}{7} \\\\\\-x = - \dfrac{57}{14}\\\\\\x = \dfrac{57}{14} = 4 \dfrac{1}{14}$