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a student determined that the ordered pair (2,-4) is a solution of the following system. x y=-2 5x y=3 his reasoning was that the ordered

a student determined that the ordered pair (2,-4) is a solution of the following system.

x y=-2

5x y=3

his reasoning was that the ordered pair satisfies the first equation x y=-2, since 2 (-4)=-2. what went wrong?

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