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OpenStudy (anonymous):
PLEASE HELP!!! Solve the following system of equations. x + 3y + 2z = -16 2x - y + 2z = -15 2x - 2y - z = 1
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OpenStudy (primeralph):
Do you know matrices?
OpenStudy (anonymous):
a) (-3, -1, -5) b) (-3, 5, -2) c) (2, -4, -3) d) (4, 4, -1)
OpenStudy (anonymous):
no i dont.
OpenStudy (primeralph):
Okay, we'll have to eliminate z first.
OpenStudy (primeralph):
Can you solve two equations?
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OpenStudy (primeralph):
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