<html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Addition Assignment Operator Example</title></head><body><script> // Addition Assignment Operator Example let y = 5; y += 3; // Equivalent to: y = y + 3 document.write("y = " + y); // Output: y = 8</script></body></html>