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18 October, 19:34

Adam says that the expression 52-3y is equal to 20 when y=2. Explain why Adam's answer is incorrect

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  1. 18 October, 19:49
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    When you substitute y with 2, you get 52-3 (2). - 3 (2) = - 6. 52-6=46. 46 is not equal to 20.
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