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Mathematics, 25.01.2021 08:20 sameh0425

-5x + 5y +5z = -15
x - 4y - 2z = 12
5x + 6y - 3z = -13

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You know the right answer?
-5x + 5y +5z = -15
x - 4y - 2z = 12
5x + 6y - 3z = -13...

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