Respuesta :

sabretooth

Answer: E. Subtract 2x

Step-by-step explanation:

Subtracting 2x would remove a bit from both equations, giving us 5x - 9 = 12. This would make it easier now that we only have one number on a side.

Hope this helps!
Subtract 2x because you need to get the x value on one side and number on the other

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