marleagabica marleagabica

16-02-2021
Mathematics

contestada

1. 3x + 7y = 14
2. 3x + y = 12
3.5x - 4y - 20
4.4x=7-2y
5. 2x - 4y -9=0

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greenforestaz greenforestaz

16-02-2021

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