Question

|-10w-1|=9

Answer 1

-10w - 1 = 9

10w + 1 = -9

10w = -10

Now divide by 10 and find w first..

Answer 2

hint:
when you have |2x + 1| = 4 all you do is

2x + 1 = 4 and 2x + 1 = -4

and solve for each one

when 2x + 1 = 4
2x = 4 - 1
2x = 3
x = 3/2

when 2x + 1 = -4
2x = -4 - 1
2x = -5
x =-5/2

does that help?

Answer 3

@shivraj Please reply what you got?

Answer 4

@waterineyes .. I have a doubt : -(10 w - 1 ) = 9 but u mentioned 4 there

Answer 5

yes

Answer 6

*-(10w - 1)=-9

Answer 7

im thinking he's getting confused with my demo =))

Answer 8

yes

Answer 9

-(10w - 1) = 9

10w + 1 = 9

10w = 8

Find w.

Answer 10

i was just demostrating how to solve absolute values but i think water copied it :))

Answer 11

@waterineyes please answer to my doubt : : : :
-(10 w - 1) = -9

not 4 .. right?

Answer 12

No..

Answer 13

why? what should be there then?

Answer 14

@waterineyes you should redo your solution from the start. it is very chaotic

Answer 15

Wait let me explain..

Answer 16

@shivraj you've been saying yes since a while ago...

Answer 17

-10w - 1 = 9 -(-10w - 1) = 9

10w + 1 = -9 10w + 1 = 9

10w = -10 10w = 8

Now divide by 10 and find w first..

Answer 18

@shivraj do you have an answer now?

Answer 19

\[\large{-10w-1=9}\]
\[\large{-10w=9+1}\]
\[\large{-10w=10}\]
\[\large{w=\frac{10}{-10}}\]


Now solve for ;
\[\large{-(-10w-1)=9}\]
\[\large{10w+1=9}\]
\[\large{10w=8}\]

Answer 20

...so what's the difference from water's solution?

Answer 21

two differences :

1) LaTeX ( that does not matter mainly )

2) @waterineyes mentioned 4 earlier

thanks!!!

Answer 22

im referring to the post above yours. water already deleted that mistake

Answer 23

*4 earlier instead of 9 .. In RHS

Answer 24

oh i didn't get look onto it sorry!!!

Answer 25

another way to solve it is \[|-10w -1 | = 9\]
solve for \[-10w - 1 = \pm 9\]
when \[-10w - 1 = +9\]
\[-10w = 9 + 1\]
\[-10w = 10\]
like wht water said

when \[-10w - 1 = -9\]
\[-10w = -9 + 1\]
\[-10w = -8\]
\[10w = 8\]
like what water said

Answer 26

good work :D "like what water said" :D

Answer 27

that's just another way to solve it

Answer 28

thnks

Answer 29

do you have an answer now?

Answer 30

no

Answer 31

not interested to know how to get it?

Answer 32

@lgbasallote I was seeing your example that is why my mind wrote their 4..


And @mathslover without latex are you not getting my solution ??

I admit my mistake there..

Answer 33

haha @waterineyes why you say my only 1st point there?

It was just a diff. but it didn't make anything on UNDERSTANDING

admitting mistake --> no problem

Answer 34

Latex is used basically for fractions parts square root parts, log matrices etc etc..

Answer 35

Here normal two linear equations are given we can show it without latex..

Answer 36

Because your second point has answer of mine in lgba part..

Answer 37

We can have discussion about this rather in chat ..
Why to make it a longer post?

thanks!!

Answer 38

I am not God so I can do mistakes...


I was seeing lgba example so I wrote their 4 but more or less mistake is mine..

Sorry to all..

Answer 39

lol that "thanks" is starting to creep me out

Answer 40

:D when i said you are "GOD" and also I pointed out your mistake .. as u did also

no problem
over !!