Question

x+6=x+2

Answer 1

actually this question is wrong, because
\[x+6=x+2 \rightarrow x-x+6-2=0 \rightarrow 4=0\]
and 4 cannot equal 0

Answer 2

This question has a problem. x should be a constant value. and you can't subtract 6 from x and equal it to when you subtract 4 from the same x. it is just not possible