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OpenStudy (anonymous):
x, 3x-9, 3(55 -x) find the numerical measurers of the angles of the triangle who angle measures are given
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OpenStudy (anonymous):
the angles of a triangle add to 180
OpenStudy (radar):
So what do you think those 3 expressions add up to?
OpenStudy (radar):
x + (3x-9) + 3(55-x) = ????
OpenStudy (radar):
@valarie have you had algebra?
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