## tyty 3 years ago Solve |2y - 2| = 15

1. myininaya

2y-2=15 or 2y-2=-15 solve both for y

2. lilg132

8.5

3. lilg132

i thought you cant have an abosolute value that = to a negative number?

4. myininaya

we have |something|=positive

5. myininaya

not |something|=negative

6. lilg132

but you wrote or 2y-2=-15 ?

7. myininaya

$2y=17 => y=\frac{17}{2}$ $2y=-13 => y=\frac{-13}{2}$ i wrote that because we have|something|=positive gives us two cases

8. lilg132

oh ok but if it is |something| = negative then we have no soloution right?

9. myininaya

right!

10. lilg132

thanks for that was abit confused

11. myininaya

tomas yes you can probably have several i know for a fact you can have two i don't think there is a limit

12. myininaya

|f(x)|>=0 so thats why |f(x)| can not have negative output

13. lilg132

ok thanks :)