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Mathematics, 19.01.2021 01:00 ebi21

Martin was given this expression to simplify: 23x + xy – y + 3y + 5 – 20x + 6xy

He simplified the expression to:

43x + 7xy −3y

What were Martin’s errors? Check all that apply.

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Martin was given this expression to simplify: 23x + xy – y + 3y + 5 – 20x + 6xy

He simp...

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