The figure shows adjacent angles BAC and CAD.



Adjacent angles BAC and CAD sharing common ray AC



Given:


m∠BAD = 129°


m∠BAC = (2x −1)°


m∠CAD = (3x + 5)°



Part A: Using the angle addition postulate, write and solve an equation for x. Show all your work. (6 points)



Part B: Find the m∠BAC. Show all your work