Jawabanmu

2014-08-19T19:36:47+07:00
2014-08-19T19:38:04+07:00
Jwb dulu yg di dlm kurung [80x(-9)] = - 720
[1.800:25] = 72
jadii,, 600+-720+72= -48
maaf klo salah atau kurang teliti