If $\begin{bmatrix}3 \\a & \\c\end{bmatrix}=\begin{bmatrix}b \\9 & \\7\end{bmatrix}$ then b=?

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If $\begin{bmatrix}3 \\a & \\c\end{bmatrix}=\begin{bmatrix}b \\9 & \\7\end{bmatrix}$ then b=?

E

Editor

Sep 18, 2022

If $\begin{bmatrix}3 \\a & \\c\end{bmatrix}=\begin{bmatrix}b \\9 & \\7\end{bmatrix}$ then b=?

Difficulty: Easy

A:

9

B:

0

C:

not defined

D:

3

ID: 63273dbaca83163ac3a11a63