emilymelissamar
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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