Question

How do you simplify `-3-3`?

Answer 1

`-6`

Explanation:

Adding two positive numbers would be `(+3) +(+3)`

`(+3) +(+3) = +6`

In the same way we can add two negative numbers

`(-3)+(-3)`

=`-6`

Think of this as going 3 units to the left, down the number line, and the going another 3 further down the number line.
You will end up at `-6`