Question

помогите пж срочнооо​

Answer 1

$7\frac{5}{6}-x=3\frac{3}{4}\\\frac{47}{6}-x=\frac{15}{4}\\-x=\frac{15}{4}-\frac{47}{6}\\-x=-\frac{49}{12}\\x=\frac{49}{12}=4\frac{1}{12}$