Jawabanmu

2013-12-29T15:59:49+07:00
2a-3bxc+5
2(-5)-(3*7*3)+5
(-10)-(63)+5
-73 + 5
= -68
2013-12-29T17:45:52+07:00
(2x-5) - {(3x7)x3} + 5 = -10 - 63 + 5 = -73+5 = -68