derrickt954 derrickt954
  • 29-10-2020
  • Mathematics
contestada

10x + 8y=472 and 9x + 8y =456

Respuesta :

aydenpeal25
aydenpeal25 aydenpeal25
  • 29-10-2020

Answer:

10x + 8y=39 and 9x + 8y=37

Step-by-step

x=2 y=3

10 + 8= 18

10 + 8 x 2 + 3= 39

10x+8y= 39

9 + 8= 17

9 + 8 x 2 + 3= 37

9x+3y= 37

39 + 37= 76

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