Breannamadison1 Breannamadison1

24-01-2017
Mathematics

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Angle ABC is a straight angle. Solve for x. AB (3x-7) BC (7x-13)

Respuesta :

24-01-2017

A straight angle means it equals 180 degrees.
3x - 7 + 7x - 13 = 180
10x - 20 = 180
10x = 200
x = 20

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