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Mathematics 7 Online
OpenStudy (anonymous):

Find if no solution, only one solution and if so, find the variables, or infinitely many solutions x-2y+2z=-7 6x-4y-z=-2 7x-6y+z=6

OpenStudy (turingtest):

multiply the second and third equation by 2 and you will be able to eliminate the z variable let me know what you get for that and I'll help you from there.

OpenStudy (precal):

@TuringTest asker only wants the solution, not interested in the process, I already tried

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