Respuesta :

aguilerapablo03

Answer:

x = 9

Step-by-step explanation:

Solving for [tex]x[/tex] the equation

First with add 6 in each term in the equation in order to solve for x

6+3x+(-6) = 21+6

3x = 27

Then we divide both term for 3

3x/3=27/3

resulting

x = 27/3

Reducing

x = 9

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