Jawabanmu

2014-02-12T14:56:46+07:00
-4x - 15 = 1 - 8x
-4x + 8x = 1 + 15
4x = 16
x = 16/4
x = 4
4 4 4
2014-02-12T14:58:09+07:00
-4x-15 = 1-8x
-4x+8x = 1 +15
4x  = 16
x= 16 / 4
x= 4