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Mathematics 7 Online
OpenStudy (anonymous):

DF bisects

OpenStudy (mathstudent55):

What do you know about segments EF and GF?

OpenStudy (anonymous):

They're the same length?

OpenStudy (mathstudent55):

Yes. Since they are the same length, you can set their expressions equal to each other and solve the equation for n.

OpenStudy (mathstudent55):

Solve this equation for n. 2n - 6 = n + 5

OpenStudy (anonymous):

n = 11?

OpenStudy (mathstudent55):

Yes. Now since n = 11, and FG = 2n - 6, plug in 11 for n in 2n - 6. What do you get?

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