Is 3x + 1 equal to 3x?

Answer 1

if you set 3x+1 = 3x

there is no real number x that could satisfy that equation

3x+1 = 3x

1 = 3x-3x = 0

1 = 0, a contradiction

only solution is a surreal number, x = infinity or negative infinity

but surreal numbers are not real numbers. They're limits that are approached but never reached