Question

How would you solve this absolute value equation?

l f + 10 l = 1

Also, how do you solve absolute value equations in general?

Answer 1

Rule: if |x| = k, then

x = k or x = -k

where k is some positive number

Answer 2

subtract 10 from both sides

Answer 3

in this particular case,

`l f + 10 l = 1`
breaks down into
`f+10=1 or f+10=-1`

Answer 4

f=-9 or f=-11

Answer 5

Alright, thanks!