Question: In Exercises, a system of equations is given, together with the inverse of the coefficient matrix. Use the inverse of the coefficient matrix to solve

In Exercises, a system of equations is given, together with the inverse of the coefficient matrix. Use the inverse of the coefficient matrix to solve the system of equations.
a. 11x + 3y = -4,
7x + 2y = 5;

In Exercises, a system of equations is given, together with

b. 8x + 5y = -6,
5x + 3y = 2;

In Exercises, a system of equations is given, together with

c. 3x + y = 2,
2x - y + 2z = -5,
x + y + z = 5;

In Exercises, a system of equations is given, together with

1 5 265 132 303 9 3

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