emilymelissamar emilymelissamar

21-12-2017
Mathematics

contestada

1) 4x-7y=3
x-7y=-15

2) 9x+8y=15
9x+8y=30

Respuesta :

rgilinski rgilinski

21-12-2017

1) x=6, y=3
2) no solution

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