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歡迎您訪問(wèn)數(shù)學(xué)考題練習(xí):如果式子5-2x的值與互為倒數(shù),則x=!

數(shù)學(xué)考題練習(xí):如果式子5-2x的值與互為倒數(shù),則x=

更新時(shí)間:2024-01-12 16:28:36作者:貝語(yǔ)網(wǎng)校

如果式子5-2x的值與互為倒數(shù),則x=

A.1

B.2

C.3

D.4

試題答案

A

試題解析

根據(jù)的倒數(shù)是3,即可得到一個(gè)關(guān)于x的方程,從而求得x的值.

解答:根據(jù)題意得:5-2x=3

解得:x=1

故選A.

點(diǎn)評(píng):本題考查了倒數(shù)的定義,解關(guān)于x的方程是關(guān)鍵.

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