Jawabanmu

2014-04-10T16:08:17+07:00
1/4 (x-10) = 2/3x(-5)
12.(1/4) (x-10) = 12. 2/3x (-5)
3(x-10) = 8x (-5)
3x- 30 = 8x -5
3x-8x = -5 +30
-5x = 25
x = 25/-5
x = -5