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15 : (-7 +2)=
15: (-5)=
-3
2. (-8) x 3 x (-7)
-24 x -7
168
jawabannya a
dalam perkalian apabila :
- x + = -
+ x- = -
- x - = +
-3(n+2) = 15
-3n -6 = 15
-3n = 15+6
-3n = 21
n = 21/-3
n = -7
jawaban D
2) (-8) x 3 x (-7)
= (-24) x (-7)
= 168
jawaban A