Question

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

Answer 1

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

Answer 2

Answer:7

Explanation:

Because 3x7=21.