Question

12 - 7 x ( -8 + ( - 9 )) =
Menggunakan cara

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Jawaban terbaik
50 poin ​

Answer 1

Jawaban:

12 - 7 × [ -8 + (-9)]

=> 12 - 7 × (-17)

=> 12 - (-119)

=> 131

Answer 2

Jawab:
= 131

Penjelasan dengan langkah-langkah:
-a + (-b) = -(a+b) = -a-b
a - b = -(b-a)
a - (-b) = a + b
-a × (-b) = + (a×b)
-a × b = -b × a = -(a×b) = -(b×a)

maka..
12-7×(-8+(-9)) = 12-7×(-(8+9)) = 12-7×(-17)
= 12+(7×17) = 12 + 119 = 131

(xcvi)