Question

Selesaikan pertidaksamaan Linear satu variabel berikut .
1. p+5 >_ 9
2. 2(x-3) < 3(2x+1)
3. 1/3 (x+2) > 2+ 3/2x
4. 2(x-3) < 4(x-2)

Answer 1

1.p+5 ≥ 9
   p     ≥9-5
      p≥4
2.2(x-3) < 3(2x+1)
=2x-6 < 6x+3
=2x-6x < 3+6
=-4x  < 9
=x<
=x<-2,25

4) 2(x-3)<4(x-2)
   =2x-6<4x-8
   = 2x-4x<-8+6
   = -2x<-2
   = x<-2
   =    -2
x=1