Question

What does negative x minus x minus 3x minus 4x equals to?

Answer 1

-x - x - 3x - 4x

Let's start from left to right. First do -x - x, which is -2x.

-2x - 3x - 4x

Now do -2x - 3x, which is -5x.

-5x - 4x = -9x

-9x is your answer.