The answer is x+4
Many people will just post the answer but i will explain how you work this question out
So firstly: You have to you have to join the two expressions together
like this: 3x-4-2x+8
It will be a -2x because +plus-=-
then you will simplify it
3x-2x=x
-4+8=4
so the answer is x=4
I hope this helped if you need anymore information please ask me and i will be happy to help!!
Thanks
