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OpenStudy (anonymous):
Solve the following system of equations. x + y – 4z = –7 2x + 3y – 3z = –6 2x + 2y – z = 0 (3, 2, 2) (–3, 2, 2) (3, –2, 2) (3, 2, –2)
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OpenStudy (saifoo.khan):
did u tried it?
OpenStudy (anonymous):
yes, but my answer isnt any of these :(
OpenStudy (saifoo.khan):
Answer is C.
OpenStudy (anonymous):
did you just plug them in? how did you do it?
OpenStudy (anonymous):
plug it in 1 number is your x 2 is you y and third is you z
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