how does X+4=X+5 like wtf ?

X would not be any real number. If x+4 equals X+5, what would be x in the first place to make the statement true?

this is impossible to answer. if you would say 'X^64 + 31.415.926.535.897 x 2^^^^582 = something, what would be X?' it would be solvable. quick calculations (without calculator): 2^^^^582 is a very big number. it is more than there are stars in our universe. then add the other big number and substract it from both sides. then get all of the X to the left side of the equal sign and rewrite it. then solve it further.