Jawabanmu

2014-04-29T20:40:34+07:00
3/4 (2x+4)=2x-1/2
6/4x + 3 = 2x - 1/2
6/4x - 2 x = -1/2 -3
-1/2 x      = -3 1/2
X =7
2014-04-29T20:54:30+07:00
3/4(2x+4) = 2x - 1/2
------------------------------- x 4
3(2x+4) = 8x - 2
6x+12 = 8x-2
12+2 = 8x - 6x
14 = 2x
x = 7