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OpenStudy (anonymous):
solve the system of equations: 5x + 2y + z =-11 2x - 3y -z = 17 7x + y + 2z = -4
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OpenStudy (tamtoan):
take the first equation add to second equation and then multiply the first equation with -2 then add to the third equation...then you will have a system of 2 equations with 2 variables and you can solve that.
OpenStudy (anonymous):
Compare your answer to (0,-6,1)
OpenStudy (anonymous):
thank you
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