Respuesta :

BrooklynnDeka

Answer:

Hi! The answer to your question is x = 27

Step-by-step explanation:

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Hope this helps!!

- Brooklynn Deka

Answer:

x=27

Step-by-step explanation:

3x+9=90

subtract 9 from both sides

3x=90-9

3x=81

divide by 3

x= 27

checking

3x27 +9= 90

81+9=90

I hope this makes sense