rg003770 rg003770
  • 02-06-2017
  • Mathematics
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i need help 2t<-4 or 7t>49

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irspow
irspow irspow
  • 02-06-2017
2t<-4 divide both sides by 2

t<-2

...

7t>49  divide both sides by 7

t>7

So t=(-oo,-2) and t=(7,+oo)

t=(-oo,-2)U(7,+oo)
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