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1) Solve these equations: 3x-y=-11 x+2y=8 2) Solve these equations: x+y+z=6 x-y-z=-4 2x+y-4z=-8

1) Solve these equations: 3x-y=-11

x+2y=8

2) Solve these equations:

x+y+z=6

x-y-z=-4

2x+y-4z=-8

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