16-02-2019
Mathematics

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Use the matrix tool to solve the system of equations 5x+2y=1 and -x-y=-2

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Аноним Аноним

16-02-2019

Answer:

Step-by-step explanation:

[tex]1.5x+2y=1\\2.-x-y=-2\\2.2(-x-y=-2)\\5x+2y=1\\-2x-2y=-4 +\\3x=3\\x=1\\Substitute into number one\\5+2y=1\\y=-2[/tex]

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