а)
9х<=-18
х<=-18/2
х<=-2
б)
-6х>36
х<36/-6
х<-6
в)
0.7(х-2)+1.3х<х+1
0.7х-1.4+1.3х<х+1
2х-х<1+1.4
х<2.4
г)
1/6х<5 |*6
х<30
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Answers & Comments
а)
9х<=-18
х<=-18/2
х<=-2
б)
-6х>36
х<36/-6
х<-6
в)
0.7(х-2)+1.3х<х+1
0.7х-1.4+1.3х<х+1
2х-х<1+1.4
х<2.4
г)
1/6х<5 |*6
х<30