Tyler didn’t simplify the like terms so that part is wrong
First step is rearranged like terms
6 + 5 -2x + 4x
Which leads to
6+ 5 = 11
-2x+ 4x
Look at the bigger value sign
= 2x
Therefore the the answer is 11 + 2x
Or you can say 2x + 11 it doesn’t really matter to be honest