1) 0.6х+1.8=0
0.6х=-1.8
х=-1.8/0.6
х=-3
2) 7-0.7х=0
-0.7х=-7
0.7х=7
х=7/0.7
х=10
3) 0.3p-5=6-0.7p
0.3p+0.7p=6+5
1p=11
p=11/1
p=11
1) 0.6х+1.8=0
0.6х=-1.8
х=-1.8/0.6
х=-3
2) 7-0.7х=0
-0.7х=-7
0.7х=7
х=7/0.7
х=10
3) 0.3p-5=6-0.7p
0.3p+0.7p=6+5
1p=11
p=11/1
p=11