2х=-4
х=-4/2
х=-2
4х=25-х
4х+х=25
5х=25
х=25/5
х=5
17+х=8
х=8-17
х=-9
3(х+2)-2=х
3х+6-2=х
3х-х=2-6
2х=-4
х=-4/2
х=-2
3-х=4-(1-3х)
3-х=4-1+3х
-х-3х=4-1-3
-4х=0
х=0/(-4)
х=0
16-х=2х+1
-х-2х=1-16
-3х=-15
х=-15/(-3)
х=5
-4х-8=0
-4х=8
х=8/(-4)
х=-2
12х-11=-11(х+1)
12х-11 = -11х-11
12х+11х=-11+11
23х=0
х=0/23
х=0
1-х=6-2х
-х+2х=6-1
х=5
-2-(3-х)=-7
-2-3+х=-7
х=-7+2+3
х=-2