Find The Length Indicated
Help Please.

- anonymous

Find The Length Indicated
Help Please.

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- anonymous

|dw:1441925591540:dw|

- anonymous

Is Line EC and KL the same length?

- anonymous

There Is No K .

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- anonymous

Those Are Arrows.

- anonymous

edc is on the same lame

- anonymous

OK. sorry. But is the line below the same length as the one above it?

- anonymous

Well The Top One Says 8 . & The Bottom Says 13.

- anonymous

Ok. So lets assume they both are of same length. and we'll name the line below KL...just for easy referencing, okay?

- anonymous

Long As I Dont Get Confused Im Fine .
Matter Of Fact Will A Picture Work ?

- anonymous

And that D is the midpoint..

- anonymous

Yeah sure :)

- anonymous

k

##### 1 Attachment

- anonymous

OK so both lines KL and EC are of same length 13 and ED is 8. But we need to find DC

- anonymous

k

- anonymous

But you answer is correct....

- anonymous

is it ?

- anonymous

Yeah it is.. I'm guessing you need help with number 5?

- anonymous

yes lol

- anonymous

ok so we could make an equation for it. You know how to do that?

- anonymous

x+10=2x+19

- anonymous

Almost. you have to include the 9 also

- anonymous

how ?

- anonymous

x + 10 + 9 = 2x + 19

- anonymous

Although you don't need the length of VU you still have to include in order to make the line VUT= to the line below it. Make sense?

- anonymous

yes

- anonymous

OK so then now you can solve it?

- anonymous

Bring all the like terms together and remember that if a term crosses the equal sign the sign in front of it changes

- anonymous

Can u help with that @kalahkid

- anonymous

Sure. So the equation is 2x + 19 = x + 10 +9. we want to move all the x terms to the left side and all the terms without x to the right side

- anonymous

Ok.

- anonymous

Do I Add 2x To Both Sides

- anonymous

No. What you do is take the x from the right side and bring it to the left side

- anonymous

|dw:1441927318228:dw|

- anonymous

Oh That Makes Sense.

- anonymous

OKay. Now you do the rest

- anonymous

Now Can I Sub . 2x

- anonymous

No you're not subtracting anything. Just moving from one side to the other and changing the sign. The 19 on the left side has to move to the right side. Try that

- anonymous

2x + -1x =1x
19+1x=10+9

- anonymous

@kalahkid Yes ?

- anonymous

2x + 19 = x + 10+ 9

- anonymous

when we move all x terms to left side and terms without x to right side we get
2x - x = 10 + 9 - 19

- anonymous

Understand?

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