4x-7≤9
4x<-36</p>
-7x≤63
2.4(5-x)-1.6x>2x-6
7x≤-14
-9x>54
1.5(x-4)-3.5x
1) 4x-7≤9 2) 4x<-36 3) <span>-7x≤63 4) 2.4(5-x)-1.6x>2x-6
4х≤16 х<-9 х≤-9 12-2,4х-1,6х>2х-6
х≤4 -2,4х-1,6х-2х>-6-12
-6х>-6
х>1
5) 7x≤-14 6) -9x>54 7) 1.5(x-4)-3.5x
х≤-2 х>-6 1,5х-6-3,5х<х+6</span>
1,5х-3,5х-х<6+6</span>
-3х<12</span>
х <-4 </span>