Last Updated：2025/11/19

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

An unknown quantity or unknown value.

音声機能が動作しない場合はこちらをご確認ください

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X

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Source Word

X

IPA(Pronunciation)

/ɛks/

Numeral

An unknown quantity or unknown value.

Japanese Meaning

未知数、未知の値、不明な量（数値や値として用いられるもの）

What is this buttons?

Solve for X when 3X + 5 = 20.

Google Translation / DeepL Translation

3倍の未知数に5を足すと20になるとき、その未知数を求めなさい。

Sense（1）

An unknown quantity or unknown value.

Let x represent the forecast traffic flow in 20 years’ time.

Google Translation / DeepL Translation

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