amberjhall
amberjhall amberjhall
  • 02-11-2018
  • Mathematics
contestada

3+6f-5-7n use f=8 and n=-9

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smedhas
smedhas smedhas
  • 02-11-2018

3+6(8)-5-7(-9)

3+48-5-(-63)

51-5+63

46+63

109

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