SOLUTION: Subscript notation is frequently used for working with larger systems of equations. Use a matrix approach to solve the system. Express the solutions as 4-tuples of the form
(x1,
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(x1,
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Question 1163596: Subscript notation is frequently used for working with larger systems of equations. Use a matrix approach to solve the system. Express the solutions as 4-tuples of the form
(x1, x2, x3, x4).
x1 − 3x2 − 2x3 + x4 = −2
−2x1 + 7x2 + x3 − 2x4 = −3
3x1 − 7x2 − 3x3 + 3x4 = −2
5x1 + x2 + 4x3 − 2x4 = 16 Answer by ikleyn(52781) (Show Source):