why i us: a=float(input()) a=a+10 print(a) is correct but when i use a=a+10 a=float(input()) print=(a) is wrong. I need a answer

Question

pls help me

Answer 1

Dang Yuh ,

when using (solely) the second code there are 2 other issues:

a=a+10 # creates a NameError since variable a is not defined

print=(a) # does not output anything, it overwrites the built-in print() function by making it a variable.

Answer 2

a=float(input())
a=a+10
print(a)

a=a+10
a=float(input())
print=(a)

In the first case, you are asking for input and setting that to a. Then adding ten to that.

In the second case you are adding 10 to a, but then setting a to the input, thus replacing whatever was in a.

Answer 3

Dang Yuh
as Lothar said, you can't start with

a += 10
or
a = a + 10

this will give you a name error because you are modifying a before it is declared. In your code, a is declared in

a = float(input())

it should be placed at the top, before you perform any operation on on it.