Respuesta :

meandmycousinmagic

Answer:

  x=6

Step-by-step explanation:

-21+3x=-3

+21      +21

   3x=18

   /3   /3

   x = 6

Answer:

Step-by-step explanation:

Step one add 21 to each sides of the equal sign the you get

3x = 18

Divide by 3 on each side of the equal sign then your answer is

6

X = 6