Tunay na bilang: Pagkakaiba sa mga binago
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Linya 12:
<math>a+b\in\mathbb{ R}</math><br><math>a-b\in\mathbb{R}</math><br><math>ab\in\mathbb{R}</math><br><math>\frac{a}{b}\in\mathbb{R}, \forall{b}\neq 0</math>
==Identidad==
<math>a+0=a</math><br><math>a\times 1=a</math>
==Imbersyon==
==Komutasyon==
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