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    Directions of Vectors and Substitution an Elimination Methods for Solving Linear Systems of Equations

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    How do you explain why vectors QR and RQ are not equivalent?
    Explain when the elimination method for solving a system of equations is preferable to the substitution method.
    I need step by step help in solving these problems

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    https://brainmass.com/math/linear-algebra/89133

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    A vector is defined as a physical quantity which has magnitude and direction. While QR and RQ are equal in magnitude, as the lengths of the vector lines ...

    Solution Summary

    Directions of Vectors and Substitution an Elimination Methods for Solving Linear Systems of Equations are investigated.

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