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Natalie solved the problem below incorrectly. Identify his error and justify your reasoning. −19+3x−11+2x=2 5x−19−11=2 5x−30=2 5x=−28 x=−5.6
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Natalie solved the problem below incorrectly. Identify his error and justify your reasoning. −19+3x−11+2x=2 5x−19−11=2 5x−30=2 5x=−28 x=−5.6
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Aug 11, 2021
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Natalie solved the problem below incorrectly. Identify his error and justify your reasoning. −19+3x−11+2x=2 5x−19−11=2 5x−30=2 5x=−28 x=−5.6
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Fonkap
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5x-30=2
5x=2+30 (not -28) when the -30 is brought over to the RHS, 30 should be added to 2 instead of subtracted
hence, 5x=32
x = 6.4
Nigel Earle
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Aug 17, 2021
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Nigel Earle
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