Mathematics
Senior High
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[x≡18(mod21) /\ x≡11(mod14)]⇔x≡4(mod7)というのは合ってますか?

Answers

✨ Best Answer ✨

x=21k+18
=14(k+1)+4=7(3k+2)+4
ちゃうくね?

なの

左は十分条件のみ満たすということですか?

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