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Mathematics, 01.12.2021 22:40 kennedy6010

Resolva os sistemas de equações a seguir pelo método da adição: a) 3x + y = 10
2x - 2y = 4

b) x + 2y = 9
3x + y = 7

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Resolva os sistemas de equações a seguir pelo método da adição: a) 3x + y = 10
2x - 2y = 4

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