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Mathematics 18 Online
OpenStudy (anonymous):

Eliminate the “z” variable in the first two equations by finding opposite coefficients and adding. What is the resulting equation? 4x – y + z = 6 3x + 2y – z = 0 4x – y – 3z = 2 Answer 7x + y = 6 7x – y = 6 x – y = 6 x + y = 6

OpenStudy (anonymous):

i dont know how to do this can u help and explain

jhonyy9 (jhonyy9):

7x+y=6 is right

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