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Of course, there is still work to do from where I left off, but hopefully that gets you started. :)

You can check your answer against this graph I did on Desmos.com

OK, great! Now, let's subtract 25 from both sides leaving us with:
2x^2 - 10x = 0

Any questions? :)

Sounds good.

No worries, glad to help if I can. :)

And you should also get x = 0 as another solution.

And we are to find the value of x correct?

yes

Alright, first question, do you know what the ~ symbol means?

similar right?

Correct!

So, that basically means the triangles have the same shape (maybe not the same size).

haha thank you

|dw:1433640781894:dw|
That's better.

yes!

ill choose 75

4x-10

Perfect!

We now just repeat the process for the other sides we know. We should get something like this...

nope im good!!

Very good! :)

Very important step right there, are you ok with that?

yes! then do i solve?

Yes! Now you have a "nice" looking equation (you do have some distributing to do, so be careful).

so...75x+375=120x-300?

Yes, that is correct!

yay!!!!!!!!!(: thank you!

no problem!

then subtract 75 from 120?

Sure, that leaves you with 45x I believe.

x=15?(:

You got it!

yay!!!!! Thank you soooo much!!(:
do i ned to plug in x for those equations or no?

oh alrighty!!! thank you so much!!

That's easy to find though based on the information we now have.

Your welcome!

Have a good night? day? haha

More like evening. :) You too!