Question 1036211
If I understand the question, the angle of 79 degrees is comprised of two other angles, CBA and DBC
5x+4+8x-3=79, since those two angles add up to 79
The x terms add up to 13x, the numbers 4 and -3=1
Therefore, 13x+1=79
13x=78
divide by 13 both sides
x=6 degrees.
They usually don't want x, but they might.
The angles are 5x+4, which is 34 degrees (x=6)
And...8x-3=45 degrees.  The two add to 79, which they must.