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Mathematics, 29.10.2020 05:50 maksimgelmud7

Andre and Elena are solving this system of equations: y=3x, y=9x−30

Andre's first step is to write: 3x=9x−30
Elena’s first step is to create a new system: {3y=9xy=9x−30
Do you agree with either first step? If so which one and explain your reasoning

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Andre and Elena are solving this system of equations: y=3x, y=9x−30

Andre's first step...
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