flipster
flipster flipster
  • 19-04-2016
  • Mathematics
contestada

REASONING - Without solving, how can you tell that x = 7 is not a solution of
3x + 10 = 20?

Respuesta :

itseileen
itseileen itseileen
  • 19-04-2016
Because anything that is multiplied by 3 and added to 10 will not equal 20
Answer Link
swagboycool
swagboycool swagboycool
  • 19-04-2016
Because 7 times 3 is 21 and without even having to add the ten you already know it does not equal 20.
Answer Link

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