i am lost with this one.

Question

Solve the system by graphing. what is the soltion.

2x-2y=10
x+y=3
x=4

This is how the problem is with all thre equations. Help me please.....

put it in slope intercept form.

put both lines in slope intercept form.
2x-2y=10
x+y=3

y= x-5
y= -x + 3

now, plot the lines, where they cross is the solution.