Jawabanmu

2014-02-21T10:27:28+07:00
1/2 x + 5 > 15 1/2 x > 10 x > 20
2x-4>3x+9 3x-2x<-4-9 x<-13
2y-7/2<3 2y<3+7/2 2y<13/2 y<13/4
2y-7/2<3 2y<3+7/2 2y<13/2 y<13/4
sudah semua ya?
iyyy...mk5h
2014-02-21T10:51:22+07:00
A. 1x +5>15
    2
<=> 1x >15-5
       2
<=> 1x >10
       2
<=> x >20
c. 2p + 4< 8
    3
<=> 2p <  8-4     
       3
<=>2p < 4
      3
<=> p < 6
d. 2x-4>3x
<=> 2x-3x > 4
<=> -1x > 4
<=> x < 4
Sorry ada yg kurang,tak cari dulu caranya y,,