SOLUTION: solve the system of equation by graphing. x+y=7 y-x=7 The solution set of the system of equation is

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: solve the system of equation by graphing. x+y=7 y-x=7 The solution set of the system of equation is       Log On


   

Question 758296: solve the system of equation by graphing.
x+y=7
y-x=7
The solution set of the system of equation is
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
solve the system of equation by graphing.
x+y=7
y-x=7
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They're 2 straight lines.
For x+y = 7
y = -x + 7
Pick 2 values for x and find y
Plot the 2 points.
Draw a line thru them.
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Do the same for the other eqn.
The intersection is the solution of the system.