What do you mean a-=b

Answer 1

a= a-b;

Answer 2

a -=b;
is a short form to write
a = a - b;

you can read it as "the new value of 'a' will be equal to the current value of 'a' minus the value of 'b'"

Answer 3

It means a=a-b

Answer 4

It means b will be subtracted from a and will be assigned to a

Answer 5

a-=b
=> a=a-b

Answer 6

its a subract b..

Answer 7

It's just the same as a=a-b
just see it as if the = sign is not there and the left expression is equal to what was on the left hand sid