Question

Finding the value for which a system has no solution. Help please!

Answer 1

For what value of w does this system have no solution?

Answer 2

For what value of w does this system have no solution?

Answer 3

I wonder why new users always use such degrading usernames... :>

Answer 4

Okay... that was a bit of a stretch... were you taught how to do this stuff at all? (Because I certainly wasn't ^_^)

Answer 5

Haha, I've used this for every account I've ever made since like the 7th grade.

Answer 6

Nope, I really have no idea.

Answer 7

I actually already know the answer, but since I wasn't taught how to do it... I'm still thinking about how to make it make sense to you... hmmn...

Answer 8

Can you just solve the system?

Answer 9

How would I do that with the extra w value in there?

Answer 10

Treat it like a constant first...

Answer 11

I mean, I could multiply the top by 3 and eliminate

Answer 12

That's true, could you do that? (pretty please :>)

Answer 13

9A + wA = 5

Answer 14

Now, solve for A.

Answer 15

Hint: Factor out the A.

Answer 16

(9 + w)A = 5?

Answer 17

Yup ^_^
And then divide both sides by 9+w... you get A = ?

Answer 18

A = 5/(9 + w)

Answer 19

\[\Large A=\frac5{9+w}\]
Which means there IS a solution for any value of w...except...?
What?

HINT: What value for w would make the fraction 5/(9+w) undefined?

Answer 20

-9?

Answer 21

THAT'S CORRECT!
LOL
I'm so happy :')
I managed to make that make sense :D

How old are you anyway? You're definitely not stupid ^_^

Answer 22

Woo! & I am 17 c:

Answer 23

I don't consider myself stupid, haha, like I said, that's just been my username on nearly everything for a long time

Answer 24

Well I'm 17 too :D
I'll be signing off for now, great job here :)
---------------------------
Terence out

Answer 25

Awesome!