Hitunglah. 1. (-12) + (7) + (-6) + (3) 2. (19) + (-5) + (-28) + (-14)

Hitunglah.
1. (-12) + (7) + (-6) + (3)
2. (19) + (-5) + (-28) + (-14)

Jawaban
(1) Persamaan yang ditetapkan
= (-12) + (-6) + (+7) + (+3)
= (-18) + (+10)
= -8
(2) Persamaan yang ditetapkan
= (+19) + {(-5) + (-14)} + (-28)
= (+19) + (-19) + (-28)
= 0 + (-28)
= -28

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