Jawabanmu

2014-09-11T16:36:18+07:00
3x + 6 = 5x + 20
3x - 5x = 20 - 6
-2x = 14
2x = -14
x = -7

x + 12 = -7 + 12 = 5
2 4 2
2014-09-11T16:45:27+07:00
3x+6=5x+20 3x-5x=20-6 -2x=14 X=14/-2 X=-7 X+12=-7+12=5
3x + 6 =5x + 20
3x - 5x = 20 - 6
-2x = 14
2x = -14
x = 12 = -7 + 12 = 5