Jawabanmu

2014-03-19T12:50:39+07:00
A. 28x + 6
b. 3x - 3
kalo gak salah
2014-03-19T12:53:09+07:00
3(x+2)-5X(-5)= 28x + 6
2(4x-5)-5x+7= 3x - 3