Question: Solve the following general system by inverting the coefficient matrix and using Theorem 1.6.2. x1 + 2x2 + 3x3 = b1 x1 - x2 +

Solve the following general system by inverting the coefficient matrix and using Theorem 1.6.2.
x1 + 2x2 + 3x3 = b1
x1 - x2 + x3 = b2
x1 + x2 = b3
(a) b1= - 1, b2 = 3, b3 = 4
(b) b1 = - 1, b2 = -1, b3 = 3

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