Algebra II

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Can someone please help me with this problem.


Given Matrix Y= 2 -7 4 and
-1 1 0

Matrix Z= 3 4 1
4 2 -4
Solve for matrix X.
X-2Y=3X+Z

HELP PLEASE!!!

  • Algebra II -

    2 X = -2Y - Z

    X = -Y - Z/2

    -Y =
    -2 +7 -4
    +1 -1 +0

    -Z/2 =
    -3/2 -2/1 -1/2
    -2/1 -1/1 +2/1

    sum =
    -3.5 + 9 -4.5
    - 1 - 2 +2

  • Algebra II -

    are you sure 9 and 2 is right??

  • Algebra II -

    No careless
    sum =
    -3.5 + 5 -4.5
    - 1 - 2 + 2

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