Jawabanmu

2014-02-09T21:43:23+07:00
3(x+2) +5=2(x+15)
3x + 6 + 5 = 2x = 30
X= 19
1 5 1
2014-02-09T21:46:18+07:00
3x+6+5=2x+30
3x-2x   =30-11
x         =19
1 4 1