解決a_{n}=3n |Microsoft數學求解器

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解 n

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解 a_n

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已復制到剪貼板

3n=a_{n}

換邊，將所有變數項都置於左邊。

\frac{3n}{3}=\frac{a_{n}}{3}

將兩邊同時除以 3。

n=\frac{a_{n}}{3}

除以 3 可以取消乘以 3 造成的效果。

示例

二次方程式