Mathematics
Mathematics, 23.11.2019 19:31, devin3634

Start solving #2 with the substitution method
2. a + b + c = 9
a - 8b - c = -27
2a - b + c = 6

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Answers: 3
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Start solving #2 with the substitution method
2. a + b + c = 9
a - 8b - c = -27
2a -...

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