Respuesta :

Answer:

Step-by-step explanation:

-3x + 6 = 18

-3x - 6 = 18 - 6

-3x = 12

x = -4

Answer:

-4

Step-by-step explanation:

-3x + 6 = 18

subtract 6 from both sides

-3x + 6 - 6 = 18 - 6

-3x = 12

divide -3 to both sides

-3x/-3 = 12/-3

x = -4

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