Geometry question on Angles and Perimeter of a Triangle: -Use the figure below (attached as answer) and the given information to calculate the specific angle
if angle B = 3x - 1, angle A = 3x - 13, and angle BCD = 136 degrees calculate angle B

Please help me, thanks in advance

Question

Geometry question on Angles and Perimeter of a Triangle: -Use the figure below (attached as answer) and the given information to calculate the specific angle
if angle B = 3x - 1, angle A = 3x - 13, and angle BCD = 136 degrees calculate angle B

Please help me, thanks in advance

anonymous · Answer

here is the diagram

anonymous · Answer

Come up with the equations you know.

anonymous · Answer

BCD = 136
BCD + BCA = 180
B + A + BCA = 180

anonymous · Answer

BCD = 136 and BCD + BCA = 180
Gives us:
136 + BCA = 180
Allowing us to solve for BCA

anonymous · Answer

B = 3x - 1 and A = 3x - 13 and B + A + BCA = 180
Gives us:
(3x - 1) + (3x - 13) + BCA = 180

Once we solve for BCA, we can solve for x.  Then we plug that into B = 3x - 1 to get B

anonymous · Answer

That makes sense I'll try that, Thank you