Jawabanmu

2014-09-11T07:37:37+07:00
A. 5x (15-6)=5x9= 45
b 12x(-7)+(-16):(-2) = (12x(-7)) + ((-16):(-2))= (-84) + 8= -76
c.-15:(-3) -7x(-4) = 5- (-28) = 5+28= 33
d. [1+2:3x4] x [9x7(7-8) : (6+5)]=

yang nomer d agak ribet
2 5 2