Question

3 9/14x - 2 17/21x = 1 1/9
Нужна помощь срочно!!!

Answer 1

3 9/14x - 2 17/21x = 1 1/9
1 9/14x-17/21x=1 1/9
23/14x-17/21x=10/9
69/42x-34/42x=10/9
35/42x=10/9
5/6x=10/9
X=10/9*6/5
X=4/3
X=1 1/3