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Plz Helpz me, Solve the system of equations x+y=-2,\ 4y=4,\ 4x+2y-4z=-22

User Stuxen
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1 Answer

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x=-3, y=1, z=3. Explanation: when you divide both sides of the middle equation by, you get y=1. If you put that into the first equation you get x=-3. Put these values into the last equation and you get -12+2-4z=-22. Subtract the two integers and you get -4z=-12 which means z=3
User Karl D
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