Question: Solve the systems in exercises 1-2. 1. x2 + 5x3 = -4 x1 + 4x2 + 3x3 = -2 2x1 + 7x2 + x3 =

Solve the systems in exercises 1-2.
1. x2 + 5x3 = -4
x1 + 4x2 + 3x3 = -2
2x1 + 7x2 + x3 = -2
2. x1 - 5x2 + 4x3 = -3
2x1 - 7x2 + 3x3 = -2
-2x1 + x2 + 7x3 = -1

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