3 2/5:(5 3/14 - x)=2 1/10

Question

3 2/5:(5 3/14 - x)=2 1/10

Answer 1

3 2/5 : ( 5 3/14 - х) = 2 1/10
2 1/10 * (5 3/14 - х) = 3 2/5
21/10 * ( 73/14 - х) = 17/5
219/20 - (21/10)х = 17/5
(21/10)х = 219/20 - 17/5
(21/10)х = 219/20 - 68/20
(21/10)х = 151/20
х = 151/20 : 21/10
х = 151/42
х = 3 25/42