3x = 21, then x = ? please help i dont really understand and te answer choices are 7, 18, 6

asked Sep 3, 2021 82.0k views

1 vote

by Prp

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if 3x = 21 all you have to do is divide both sides of the equation by 3

3x = 21

3x divided by 3 is x, and 21 divided by 3 is 7

so then you get x = 7

Slyprid answered Sep 3, 2021

5.1k points

3 votes

Answer:7

Explanation:

Because 3x7=21.

Dry answered Sep 7, 2021

by Dry

4.0k points

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