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Mathematics 7 Online
OpenStudy (anonymous):

Solve the following system of equations? x + 3y - z = 2 x - 2y + 3z = 7 x + 2y - 5z = -21 a)(2, 3, 5) b)(-2, 3, 5) c)(2, -3, 5) d)(2, -3, 5)

OpenStudy (anonymous):

first move all terms to one side to make them equal to zero

OpenStudy (anonymous):

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