Respuesta :

cyfrostalt3

Answer:

-6

Step-by-step explanation:

3x + 9 = -9

3x = -18

x = -6

Answer:

x = -6

Step-by-step explanation:

3x=-9-9 (subtract 9 from both sides)

3x=-18 (simplify -9 -9.to -18)

x=-18/3 (divide both sides by 3)

x=-6 (simplify to 6)

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