Jawabanmu

2014-08-27T22:34:28+07:00
a. 5 x (15 - 6)
⇔ 5 x 9
⇔ 45

b. 12 x (-7) + 16 : (-2)
⇔ -84 - 8
⇔ -92

c. -5 : (-3) - 7 x (-4)
⇔ 5/3 + 28
⇔ 5/3 + 84/3
⇔ 89/3

d. ( 1+2÷3×4 ) × ( 9×7(7-8)÷(6+5) )
⇔ ( 1 + 8/3 ) x ( -63 : 11 )
⇔ ( 3/3 + 8/3 ) x ( -63/11 )
⇔ 11/3 x -63/11
⇔ -63/3
5 4 5
2014-08-27T23:05:05+07:00