calirosekarstad calirosekarstad
  • 30-11-2017
  • Mathematics
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3x+7=20 pls help ty :)

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AnitaPea
AnitaPea AnitaPea
  • 30-11-2017
3x+7=20
subtract 7 from both sides 
3x=13
divide both sides by 3
x=4.3

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