A+=10

Question

what does that mean

Answer 1

It is equivalent to A = A + 10.

Answer 2

It is just a different, simplified way to write it. You can use either.

Also, similarly, you have -=, *=, /=, etc.

Answer 3

it will increase u r A value by 10
and assign new value to A as A+10

Answer 4

is it new A equal old A plus 10?

Answer 5

A+=10
means
A=A+10