Respuesta :

Answer: 3x+120

Step-by-step explanation:

(3x−1)=3x−1

=3x−1+90+31

Add the numbers: −1+90+31=120= 3x+120

I couldnt solve x because the problem isnt complete so i simplfied the equasion. Hope this helps :). I would really apreciate brainliest if not that alright.

Have a great day!

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