Mathematics 2 Deneme Sınavı Sorusu #375138

If the solution of the linear system 

is the point (-1,3) then what is the value of m-n ?


-6

-3

0

2

6


Yanıt Açıklaması:

It’s obvious that (-2,3) satisfies each of the equations. Hence 

and 

Therefore, we have m-n=2-2=0

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