Jawabanmu

2014-02-10T17:01:11+07:00
⇔-4X + 8X = 15 + 1
⇔4X = 16
⇔X = 16/4
⇔X = 4
HP { 4 }
2014-02-10T17:02:20+07:00
-4x-15=1-8x -4x+8x=1+15 4x=16 x=16:4 x=4