Помогите1/7х+2=1/3х-1

Question

Помогите1/7х+2=1/3х-1

Answer 1

1/7х+2=1/3х-1
3/21х+2=7/21х-1
3=4/21х
4/21х=3
21х=12
х=12/21
х=4/7

Answer 2

1/7х-1/3х=-2-1
3/21х-7/21х=-3
-4/21х=-3
х=15 3/4