Why do you need to use else statements?

Sorry if this is a dumb question, I am still new but wouldn't

if(answer = true) {
Console.WriteLine("Correct!")
} else {
Console.WriteLine("Incorrect!")
}

if(answer = true) {
Console.WriteLine("Correct!")
} else {
Console.WriteLine("Incorrect!")
}

Just be exactly the same as:

if(answer = true) {
Console.WriteLine("Correct!")
} 
Console.WriteLine("Incorrect!")

if(answer = true) {
Console.WriteLine("Correct!")
} 
Console.WriteLine("Incorrect!")