Just add a +=
and a new variable like so:
number = [1, 2, 4, 5, 6]
y = 0 #new variable (output variable)
for x in number:
y += x #add = sign here
print(y)
Output:
18
But it would be better to use:
y = sum(number)
print(y)
Output:
18
28
solved Number plus number from array in loops [duplicate]