3/2022 1. Tentukanlah hasil dari: a-15: (-3)-7X (-4) b. 12 x (-7) + (-16): (-2) Latihan A 14. A A ES
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[tex] a. \: \:( - 15 \div ( - 3) )- 7 \times ( - 4) \\ = 5 - (7 \times ( - 4)) \\ = 5 - ( - 28) \\ = 5 + 28 \\ = 33[/tex]
[tex]b. \: \: 12 \times ( - 7) + ( - 16) \div ( - 2) \\( 12 \times ( - 7)) - 16 \div ( - 2) \\ = - 84 - (16 \div ( - 2)) \\ = - 84 - ( - 8) \\ = - 84 +8 \\ = - 76[/tex]
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