Question
Find the value of $a, b, c$ and $d$ from the equation:$$\left[\begin{array}{cc}a-b & 2 a+c \\2 a-b & 3 c+d\end{array}\right]=\left[\begin{array}{cc}-1 & 5 \\0 & 13\end{array}\right]$$
Step 1
This gives us the following equations: \begin{align*} a - b &= -1 \quad (1) \\ 2a + c &= 5 \quad (2) \\ 2a - b &= 0 \quad (3) \\ 3c + d &= 13 \quad (4) \end{align*} Show more…
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