how do u solve Graph and check a linear system?

Question

y-x=4
y=3x+2

Answer 1

Plug is some values and then graph the results. Here is how to do it.

y-x=4
solve for y
y=x+4

Now plug is values for y and solve for x
x y
7 3
6 2
5 1
4 0
3 -1
2 -2
1 -3
0 -4

Chart those values on the graph and you get a line that crosses the X axis at (4,0) and the Y axis at (0, -4)\\Do the same for the other equation.

Answer 2

which makes -

x=y-4
x=(y-2)/3