I need some help solving these two problems. Thank you. 1. 5x-3y=14 -x+2y=10 2. 2x+y=21 3x-2y-2z=4 -x-y-z=5
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For the first one you can use the matrices: Then multiply both sides of the equation by the inverse of the 2x2 matrix: The same process can be used for the second question
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