<span>m=(2y-y1)/(x2-x1) thats your answer</span>
The answer is 7.
If angels ABC and BCA are congruent, then their opposite sides are congruent (sides AB and AC). Therefore, 3x-7=2x, giving you the answer of 7 when solved.
Angle 1,6,4 and 8 are all 30 degrees because they are across from eachother
Answer:
you need to show the shape or somet or else I can't rlly help
