cosmiclastname
cosmiclastname cosmiclastname
  • 29-09-2017
  • Mathematics
contestada

Which line shows the first error in the solution?

3(x-2)=18 (1)

3x-6=18 (2)

3x-6+6=18+6 (3)

3x=24 (4)

x=21 (5)

Respuesta :

choixongdong
choixongdong choixongdong
  • 29-09-2017
error in this x=21 (5)
should be
x = 8 (divide 24 by 3...not subtract )
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