Question

45/4-(х-7 3/14)=2 9/14

Answer 1

вариант решения во вложении

Answer 2

$45/4-(x-7 .3/14)=2. 9/14 \ x-7 3/14= 45/4-2 9/14 \ x-7 3/14=239/28 \ x=239/28+7 3/14 \ x=421/28 \ x=15 3/4$