SOLUTION: Solve the system of equations by graphing. Then classify the system as consistant or inconsistant and the equation as dependent or independent. x + y = 7 x - y = -5 What is the

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Solve the system of equations by graphing. Then classify the system as consistant or inconsistant and the equation as dependent or independent. x + y = 7 x - y = -5 What is the       Log On


   

Question 139109: Solve the system of equations by graphing. Then classify the system as consistant or inconsistant and the equation as dependent or independent.
x + y = 7
x - y = -5
What is the solution of the equations?
Can someone please explain to me how to do this?? I am so stumped with this problem.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x + y = 7
y=-x+7 (red line)
x - y = -5
-y=-x-5
y=x+5 (green line)
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+-x+%2B7%2C+x+%2B5%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, of TWO functions -x +7 and x +5).
ANSWER (1,6)