Help ASAP please estimate the solution of the linear system graphically and check the solution algebraically

x+y=-4
y=3x+16

A:(-5,1)

B:(10,-14)

C:(3,-7)

D:(4,-4)

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)