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Mathematics, 09.11.2020 09:20 yfnal3x

Solve the system with three variables with elimination or substitution x+y+z=1

3y-z=8

x-y+z=-3

Help is appreciated. Please don't spam "I dunno" or "?" to get the points. I need a valid answer, to check my work.

Thank you

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Solve the system with three variables with elimination or substitution x+y+z=1

3y-z=8
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