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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