SOLUTION: Solve the system x+y=9 and 4x+y=9

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Question 995318: Solve the system x+y=9 and 4x+y=9
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

...eq.1
...eq.2
----------------------subtract eq.1 from eq.2




go to eq.1, plug in for
...eq.1


so, these two lines intersecting each other in one point, (,)





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