Add values of string and double variables?

[BlueMoon]

I have the following 2 variables. How do I add value of them to generate another string variable?

Double abc 3.4467
Srting xyz "hello"

I want to add the xyz + abc to produce a string variable with value "hello 3.4467"

[miro1360]

lets say your third variable is
String result
use custom code block and "add" them together:
result = hello + (string)abc;

(string)abc means, that abc you want convert to string from double ...

if you want space between, than this:
result = hello + " " + (string)abc;

if you want to add something own:
result = hello + " " + (string)abc + " myText";

if you need precision from double number, do this:
result = hello + DoubleToStr(abc, 4);
where number 4 means how much digits you need after decimal ...