Answer:
(9-7)
Step-by-step explanation:
Answer:
7x
Step-by-step explanation:
The trick to solving this problem is to know and remember that the sum of all the interior angles of a triangle is always 180 degrees.
Thus, (6x+1) + (5x-17) + (9x-24) = 180.
20x = -40, so x = -2 (answer)
8x(5x2+3)=8x(15+3)=8x13=104