Jawabanmu

2014-06-09T11:41:40+07:00
2(X+7)-3(2x+1)=4(x+7)-10x+5
2x+14-6x-3=4x+28-10x+5
(-4x)+11=(-6x)+33
(-4x)+6x=33-11
2x=22
x=22/2
x=11