Question

How do you solve `abs(k-10)=3`?

Answer 1

`k = 7, k = 13`

Explanation:

`|k-10| = 3` is really two problems:

`+(k-10) = 3` and `-(k-10) = 3`

Solve each one:
`k - 10 = 3`
`k -10 + 10 = 10 + 3`
`k = 13`

`-(k-10) = 3`
`-k+10 = 3`
`-k+10-10 = 3-10`
`-k = -7`
`k = 7`