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29-08-2020
Mathematics

contestada

21x - 12y = -15
- 7x + 4y = 5

Respuesta :

habibaaboeldahab habibaaboeldahab

29-08-2020

Answer:

0

Step-by-step explanation:

_7x+4y=5 *(3)

_21x+12y=15

21x_12y=_15

____________

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I think !that is the answer

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