# Algebra

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In a triangle ABC, angle B is three times angle A and angle C is 5 degrees less than 6 times angle A. Find the size of the angles.

• Algebra -

B = 3A
C = 6A -5

Since triangles have 180 degrees:

A + 3A + 6A - 5 = 180

Solve for A and then insert that value into the first two equations to solve for b and C.

• Algebra -

34

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