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Mathematics 10 Online
OpenStudy (alexaj):

If you were to use the elimination method to solve the following system, choose the new system of equations that would result after the variable z is eliminated in the first and second equations, then the second and third equations. 3x – 5y + 2z = 7 4x + 9y – z = 2 x – 3y + 3z = 7

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