Here is the thing, I'm behind on schoolwork because I do not understand what I'm doing ad I have tried reaching out to my teacher but she does not answer. I cannot keep getting behind. I did some practice on my class I got many wrong. I want to understand why I got it wrong and the steps. I really need help.
Here is the first problem: Find the values of x and y.
So there are two vertical pararell lines intersected by a transversal. I will attach an image as soon as possible.

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##### 1 Attachment

- anonymous

The answer is actually x= 100 and y=10 but I don't understand how to obtain that answer

- Vocaloid

|dw:1443726074725:dw|

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- Vocaloid

|dw:1443726106598:dw|

- Vocaloid

2x - 70 = x + 30
solve for x

- anonymous

Ohhh okay, what postule/theorem would that be? What do I do wit hthe 5y

- Vocaloid

opposite exterior angles

- Vocaloid

after we find x (x=100 in this case) , we can find y

- Vocaloid

|dw:1443726295475:dw|

- Vocaloid

2x - 70 + 5y = 180
130 + 5y = 180
solve for y

- anonymous

Ohh okay, wow you have no idea how thankful I am for this, I understand now. Thank you.

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