let x = 10;
// Assign the value 5 to x
let x = 5;
// Assign the value 2 to y
let y = 2;
// Assign the value x + y to z:
let z = x + y;

let x = 5;
let y = 2;
let z = x + y;
O/P:7

let x = 5;
let y = 2;
let z = x * y;
O/P:10

let a = 3;
let x = (100 + 50) * a;
O/P:450

let x = 10;
x += 5;

let text1 = "John";
let text2 = "Doe";
let text3 = text1 + " " + text2;

John Doe

let text1 = "What a very ";
text1 += "nice day";

What a very nice day

let x = 5 + 5;
let y = "5" + 5;
let z = "Hello" + 5;

10
55
Hello5