Jawabanmu

2014-05-18T07:08:25+07:00
2(-2) - 4(-5) - 7 = -4 + 20 - 7 =16 - 7 = 9
2014-05-18T07:09:08+07:00
2 (-2) - 4 (-5) - 7
= -4 + 20 -7
= 9
Maaf kalo jawabannya salah