Posted by **Eddie** on Sunday, October 16, 2011 at 4:08pm.

Given b is the midpoint of AC. AB=6x+7 and BC is 18x-4 what is the length of AB BC AC

- Geometry -
**Lilly**, Sunday, October 16, 2011 at 4:39pm
Sinve b is midpoint of ac then ab and ac are the same length. So, 6x+7 = 18x-4.

Hope this helps.

- Geometry -
**Eddie**, Sunday, October 16, 2011 at 4:52pm
Then what do I do with 6x+7 = 18x-4

- Geometry -
**Steve**, Monday, October 17, 2011 at 11:11am
Uh, solve to see what x is. Then use that value to evaluate AB and BC. They should come out the same.

If you're taking geometry, a little algebra I should be no problem...

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