what is meaning of x =+ 1 ??

Answer 1

x =+ 1 will be equivalent to x = 1

But x += 1 is equivalent to x = x +1

^^

Answer 2

X=+1 is the same as X=1
However if x+=1 is written, then it means x=x+1 that is value of x will get stored in x after we add 1 to it