1)18-16х=-30х-10
-16х+30х=-10-18
14х=-28
х=-28÷14
х=-2
2)-7х+2=3х-1
-7х-3х=-1-2
-10х=-3
х=-3÷(-10)
х=0,3
3)10-2х=12+х
-2х-х=12-10
-3х=2
х=-2÷3
х=-2/3
4)6х-19=-2х-15
6х+2х=-15+19
8х=4
х=4÷8
х=0,5
5)0,2х+3,4=0,6х-2,6
0,2х-0,6х=-2,6-3,4
-0,4х=-6
х=-6÷(-0,4)
х=15
6)5/6х+12=1/4х-2
5/6х-1/4х=-2-12
10/12х-3/12х=-14
7/12х==-14
х=-14÷7/12
х=-14×12/7
х=-24