Question

Помогите пожалуйста

Answer 1

1
х/48=-6/8
х=-6/8*48
х=-36
2
х:(-8/12)=3/32
х=3/32*(-8/12)
х=-1/16
3
-5 1/8*х-5 3/4=3 3/8-7 1/4*х
-5 1/8*х+7 1/4*х=3 3/8+5 3/4
-5 1/8*х+7 2/8*х=3 3/8+5 6/8
2 1/8*х=8 9/8
х=9 1/8:2 1/8=73/8*8/17
х=73/17=4 5/17