Question

How do you evaluate `8r - (5r + 4) >= -31`?

Answer 1

`rge-9`

Explanation:

First, let's take a look at this part: `-(5r+4)`
`-(5r+4)` is the same as `-(5r)-(4)` which is `-5r-4`.
Let's add in the `8r`. The whole equation would be:
`8r-5r-4ge-31`.

`8r-5r=3r`. Now, the equation would be:
`3r-4ge-31`.
Now we will add `4` to both sides.
`3r-4color(blue)+color(blue)4ge-31color(blue)+color(blue)4`
Then we simplify to `3rge-27`. Divide both sides by `3` and you will get `rge-9`.

Answer: `rge-9`.