Jawabanmu

2014-08-31T18:45:16+07:00
5(2x-1)-7x+7
10x-5-7x+7
10x-7x-5+7
3x+3
1 5 1
2014-08-31T18:45:28+07:00
5(2x-1) -7x+7
10x-5-7x+7
10x-7x-5+7
= 3x+2