math,help plz

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i am lost with this one.

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.

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