Answer:
draw line through X which is parallel to other two lines
by alternative angles, X = 50 + 70 = 120°
When solving a system by graphing you need to see where the lines intersect.
Below is a picture of these lines graphed. The green line is y = x +4 and the blue line is y = 4x - 1
The red dot represents the intersection is about (1, 5)
The original point is: (1.667, 5.667)
Hope this helped!
900,000+40,000+300+1= 940,301.. The answer is D.)