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Mathematics 17 Online
OpenStudy (anonymous):

PLEASE HELP!!! Solve the following system of equations. x + 3y + 2z = -16 2x - y + 2z = -15 2x - 2y - z = 1

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?

OpenStudy (primeralph):

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