Jawabanmu

2014-09-06T09:13:45+07:00
=[1+2÷3×4]×[9×7×(7-8)÷(6+5)]
=[1+6×4]×[9×7×1÷11]
=1+10×[63×11]
=1+10×693
=1+6930
=6931
2014-09-06T10:29:49+07:00
(1+2:3x4)x(9x7(7-8):(6+5))
=  (3,66)x(63x(-1):11)
=  (3,66)x(-5,7272)  
=  jika dibulatkan hasilnya (-21)
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