Х+х/4=-5
5х=-5*4
5х=-20
Х=-20:5
Х= -4
----------------
Х+х/2=-9
3х=-9*2
3Х=-18
Х=-18:3
Х=-6
------------------
Х+х/4=5
5х=5*4
5х=20
Х=20:5
Х=4
------------'---
х+х/2=-3
3х=-3*2
3х=-6
Х=-6:3
Х=-2
-----------------
Х+х/3=-4
4х=-4*3
4х=-12
Х=-12:4
Х=-3
----------------
Х-х/3=-1/3
2х=-1
Х=-1:2
Х=-1/2
-----------------
Х-х/12=-11/12
11х=-11
Х=-11:11
Х=-1
--------------------
Х-х/9=10/3
8х=3*10
8х=30
Х=30:8
Х= 3 3/4
-------------------'
Х-х/7= -39/14
12х=-39
Х=-39:12
Х= 3 1/4
----------------
Х-х/7=-3/14
12х=-3
Х=-3:12
Х=-1/4