When Ross solved the equation 12 = 3x, he made a mistake. Hiswork is shown below. What mistake did Ross make?3x = 123x - 3= 12-3x=9

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Kao asked Dec 18, 2023

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When Ross solved the equation 12 = 3x, he made a mistake. Hiswork is shown below. What mistake did Ross make?3x = 123x - 3= 12-3x=9

Mathematics
college

Kao asked Dec 18, 2023

by Kao

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The mistake Ross has made was in line 2, and it is that we can only combine like terms, that is, terms that have the same variable at the same power. So

$3x-3\\e x,$

We cannot performe this operation.

Mathieu Westphal answered Dec 25, 2023

by Mathieu Westphal

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