# Basic JavaScript - Compound Assignment With Augmented Addition

Tell us what’s happening:
Help…I feel very dumb because I don’t understand anything on this step…
Describe your issue in detail here.

``````let a = 3;
let b = 17;
let c = 12;

// Only change code below this line
a = a + 12;
b = 9 + b;
c = c + 7;
``````

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Challenge: Basic JavaScript - Compound Assignment With Augmented Addition

If you want to add 27 to `x`, you can do it like this:

``````let x = 5;
x = x + 27;
console.log("x equals " + x);
// x equals 32
``````

But since we increment values so often, we like to use the `+=` operator as a shorthand. Instead of `x = x + 27`, we can enter `x += 27` and get the same result. In other words, `x += 27` is equivalent to `x = x + 27`.

Knowing that, can you simplify the line `a = a + 12;` using the `+=` operator?

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