Seudónimo Seudónimo
  • 09-01-2017
  • Mathematics
contestada

solve for n (4 2/3 +2 4/7) + 7 3/7 = n + 12

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Аноним Аноним
  • 09-01-2017
I hope this helps you



4.3+2/3=14/3=7.14/3.7=84/21


2.7+4/7=18/7=18.3/7.3=54/21


7.7+3/7=52/7=52.3/7.3=156/21


84+54+156/21=138+156/21=294/21


294/21-12=x


x=42/21


x=2
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