1) -4х+10=0
-4х=10
х=10/-4
х=2.5
2) 2х-10=-3
2х=-13
х=-13/2
х=-6.5
3) 9х+6=10х
9х-10х=-6
-х=-6
х=-6/-1
х=6
4) -6х-5=4х
-10х=5
х=5/-10
х=0.5
5) -х+2=4х
-х-4х=-2
-5х=-2
х=-2/-5
х=0.4
6) -4х=-10х-9
6х=-9
х=-9/6
х=-1.5
7) 9+4х=8х-9
-4х=-18
х=-18/-4
х=4.5