Respuesta :

Answer:

x=1

Step-by-step explanation:

18x+3=21

  -3 = -3

18x= 18

18x/18 = 18/18

x= 1

scottrn9696

Answer:

x = 1

Step-by-step explanation:

[tex]18x + 3 = 21\\18x = 21 - 3\\18x = 18\\18x/18 = 18/18\\x= 1[/tex]