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OpenStudy (anonymous):
Solve using matrices x+z=7 2y-z=-3 -x-3y+2z=11
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hero (hero):
Set up the matrix first
OpenStudy (anonymous):
ok
hero (hero):
[ 1 0 1 7] [ 0 2 -1 -3] [-1 -3 2 11]
OpenStudy (anonymous):
yes like that sorry copied wrong problem
OpenStudy (anonymous):
Ok so what do we do then
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