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Mathematics, 20.10.2020 03:01 GreenHerbz206

3 step equations, I really need help on these with all the work: 1.
4x+y+5z=-9
x-4y-2z=-2
2x+3y-2z=21

2.
x-7y+3z=17
5x+2y-2z=-57
3x-10y-z=-11

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Answers: 3

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3 step equations, I really need help on these with all the work: 1.
4x+y+5z=-9
x-4y-2z...
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