Question

3. Solve the equation and write the solution set.
|2x – 6| – 4x = 8x + 4

Answer 1

this is the only question i cant seem to find the right answer for! can someone please help?

Answer 2

Do you have options to chose from?

Answer 3

no, thats all it gave me.

Answer 4

kk, sec

Answer 5

I got -10x/10 = 10/-10

Answer 6

x=-1

Answer 7

Yup :D

Answer 8

okay thanks! :) and how did you get that?

Answer 9

l2x - 6l -4x = 8x + 4
+ 4x + 4x
2x - 6 = 12x + 4
+ 6 + 6
2x = 12x + 10
-12x - 12x

-10x = 10
/-10 /-10

= -1

Answer 10

well done fizzy...and sara i hope ths guy let u to understand thorouly

Answer 11

Fizzy? =.=

Answer 12

@sarahann117 did you understand?

Answer 13

fizzi which is the best free software for mathmetics,i e Calculus,fouriour n Laplace Transforms???

Answer 14

I'm a freshman lol I can't take calculus yet.. sorry :/

Answer 15

ok fizzy in which level r u studying?

Answer 16

What do you mean?

Answer 17

i mean in which class r u studying?

Answer 18

Algebra I. though I practice more advance stuff when I'm not doing HW. I'm kinda learning physics too :)

Answer 19

This helped me: https://www.mathway.com
GL :>

Answer 20

ok but i am studying advance Engineering Mathmetics ...only applied in Electrical Engineering

Answer 21

Have you looked at mathway.com?

Answer 22

yes it is good website but u can also try integrals.wolfram.com/‎

and Quickmath.com as well

Answer 23

Yes I've done a few other problems like this one but i forgot to carry over, thanks though!(:

Answer 24

Yea, saw them on google :D
@sarahann117 Yw :)

Answer 25

ok dear thanks u so much,,,if u are using facebook too here is my id skywalker763@yahoo.com u can add me their

Answer 26

xD sure .. I forgot my fb password and possible email ._.

Answer 27

ok i hope u ll add whenever u ll make ur new account on fb

Answer 28

kk cyaa :p

Answer 29

@sarahann17 This kind of equations requires taking in consideration intervals of x for the absolute value of the expression |2x-6| .

Case 1: when 2x-6>=0 ie. x>=3
The answer is like @tHe_FiZiCx99 and @hasnain986 said : x=-1
But -1<3, meaning the answer doesn't belong in the interval. Therefore, there's no solution on this interval.

Case 2: when 2x-6<=0 ie x<=3
|2x-6| - 4x = 8x + 4 becomes -(2x-6) - 4x = 8x + 4
The answer to that is x=1/7
And 1/7<=3, meaning the answer belongs in the interval.

So the solution set:
S={1/7}

Answer 30

@sarahann117 *

Answer 31

I also got 1/7 when I tried to find the interval. forgot to include it though
Ty @math&ing001