Question: Solve the given systems of equations by using the coefficient matrix. Use a calculator to perform the necessary matrix operations and display the results and

Solve the given systems of equations by using the coefficient matrix. Use a calculator to perform the necessary matrix operations and display the results and the check.

7n + p + 2r = 3

4n − 2p + 4r = −2

2n + 3p − 6r
= 3

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