Precalculus Examples

[\begin{array}{c} 4 & - 3 \\ 4 & 5 \end{array}] = [\begin{array}{c} 4 & x \\ 4 & 5 \end{array}]

$[\begin{array}{c} 4 & - 3 \\ 4 & 5 \end{array}] = [\begin{array}{c} 4 & x \\ 4 & 5 \end{array}]$

Step 1

The matrix equation can be written as a set of equations.

4 = 4

$4 = 4$

- 3 = x

$- 3 = x$

4 = 4

$4 = 4$

5 = 5

$5 = 5$

Step 2

Rewrite the equation as

x = - 3

$x = - 3$ .

x = - 3

$x = - 3$

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