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Mathematics 11 Online
OpenStudy (anonymous):

What is the value of the system determinant for the following system of equations? 6x + y = 4 5x + y - 7 = 0 a)-1 b)1 c)31

OpenStudy (anonymous):

the determinant is 1

OpenStudy (anonymous):

I arrived at this by setting up a matrix using the x and y terms only. |6 1| |5 1|

OpenStudy (anonymous):

then the determinant is 1*6 - 1*5

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