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Mathematics 7 Online
OpenStudy (anonymous):

Find the measure of Angle 5. measure of angle 7 = 2x+15 measure of angle 8 = 3x

OpenStudy (anonymous):

OpenStudy (anonymous):

Angle 7 and 5 are vertical angles, so they're equal. Angles 7 and 8 are supplementary, so they have to add up to 180. 2x + 15 + 3x = 180 Solve for x, then plug it into the expression for angle 7 to get you answer

OpenStudy (anonymous):

I got as far as they add up to 180.

OpenStudy (anonymous):

Can you solve that equation for x?

OpenStudy (anonymous):

thats the problem im having. I keep coming out with different answers.

OpenStudy (anonymous):

Sorry i accidently closed the question.

OpenStudy (anonymous):

5x + 15 = 180 5x = 165 x = 33

OpenStudy (anonymous):

I came up with 33 once but wasnt sure if i was correct

OpenStudy (anonymous):

you were right. and then you'd plug it into 2x+15 to get the answer

OpenStudy (anonymous):

so 41?

OpenStudy (anonymous):

2(33)+15

OpenStudy (anonymous):

Im so confuzzled

OpenStudy (anonymous):

Multiply 2 times 33 first, then add the 15

OpenStudy (anonymous):

So 81?

OpenStudy (anonymous):

right

OpenStudy (anonymous):

Great thanks for your help!!

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