Hey! So I'm completely lost on figuring out how to solve system of equations. I'm researched it everywhere and I just can't seem to figure out how to do this. Here are some specific questions I need help with.

Solve the system of equations using the graphing method. What does the graph look like?

y = x

y = (-2/3)x + 5

a) 2 lines intersecting at (3,3)

b) 2 lines intersecting at (-3,-3)

c) 2 lines intersecting at (2,2)

d) 2 lines intersecting at (-2,-2)

Solve this system of equations:

x = 2y - 8

4x + y = 13

a) (2,-5)

b) (-2,5)

c) (2,5)

d) (-2,-5)

What is the correct first step to solve this system of equations?

4x - 3y = -10

2x + 3y = 4

a) add the 2 equations together

b) subtract the 2 equations

c) multiply the second equation by 3

d) divide the first equation by 4

I'd really appreciate if someone could explain to me how to do these problems and how to solve system of equations in general. Thanks so much!