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January 25, 2015

January 25, 2015

Posted by **Sam** on Tuesday, September 21, 2010 at 4:13pm.

- algebra -
**TutorCat**, Tuesday, September 21, 2010 at 4:33pmB=4A

C=5A-17

The three angles of a triangle add up to 180 degrees.

A+B+C=180

hint: use substitution.

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