Question

|-3n| - 2 = 4

A) 2 or -2
B) 3 or -3
C) 4 or -4
D) 6 or -6

Answer 1

@PFEH.1999 :)

Answer 2

first add +2 to both sides of the equation.

Answer 3

|-3n|-2=4
|-3n|=4+2=6

Answer 4

|-3n|= 6

Therefore,

3n = 6 or 3n= -6

Answer 5

so 2 or -2 would give 6 in this case

Answer 6

Now solve n for both functions.

Answer 7

so we hava to cases:
\( \large \color{red}{(1)} : |-3n| = 6 \) for \( n \ge 0 \) thus \(3n = 6 \) so \( n=2 \)
\( \large \color{red}{(2)} : |-3n|=6 \) for \( n < 0 \) so \( -3n = 6 \) so \( n=-2 \)

Answer 8

*two cases

Answer 9

A ?

Answer 10

what do u think?

Answer 11

Well, since you said n = 2 or -2, I'm assuming it would be A ?

Answer 12

corrrect ;)

Answer 13

Cool ! THANKS !!!!

Answer 14

So, what kind of music do you like ?

Answer 15

music?! why are u asking this question? :D

Answer 16

You say you like music so I'm just curious

Answer 17

Aw yes ;) piano mixed with violin ...

Answer 18

Really? I play electric viola and piano :)

Answer 19

Wanna help with some more questions ?

Answer 20

sure ;)

Answer 21

\[
|-3n| = |-3||n| = 3|n|
\]

Answer 22

I already got it @wio THANKS though :)