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Mathematics 22 Online
OpenStudy (anonymous):

Find the Value of X and Y. (Unit 3, Lesson 10.( Parallel and Perpendicular Lines). Picture attached in comments.

OpenStudy (anonymous):

OpenStudy (austinl):

Ok, from that picture we know a couple things. \(2x+7=3x-7\) AND \((2x+7)+(12y+1)=180\) Do you understand where I got these from?

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

@austinL

OpenStudy (austinl):

Now in the second line, can you solve for x?

OpenStudy (anonymous):

I'm not sure how to do that :I

OpenStudy (austinl):

Excuse me, first line solve for x :$ my bad.

OpenStudy (austinl):

\(2x+7=3x−7\) \(7+7=3x-2x\) \(14=x\) Do you think you could solve for y now?

OpenStudy (anonymous):

Isn't that what you just did? lol.

OpenStudy (austinl):

I said second line earlier, that has two variables, and x and a y. The first line has only x's. Now you can solve for y in the second line

OpenStudy (anonymous):

B?

OpenStudy (austinl):

B?

OpenStudy (anonymous):

The answer is B, right? lol

OpenStudy (austinl):

Oh, duh, didnt even notice that there were choices :P I don't think it is B.

OpenStudy (anonymous):

Boo. I suck! lol.

OpenStudy (austinl):

No you don't, it just takes practice! Try again, \(x=14\) \((2x+7)+(12y+1)=180\) Now substitute that in, \((2(14)+7)+(12y+1)=180\) and solve for y!

OpenStudy (anonymous):

Oh, okay! That make more sense. lol. One sec.

OpenStudy (anonymous):

It's C! x=14 and y=12.

OpenStudy (austinl):

Correctomundo! :D

OpenStudy (anonymous):

Yay! Thanks, you're awesome!(:

OpenStudy (austinl):

no problemo! if you need more help feel free to tag me

OpenStudy (anonymous):

Thanks(:

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