bohden
bohden bohden
  • 11-01-2017
  • Mathematics
contestada

Identify the mistake:

3(x + 9) = 6x + 45

3x + 27 = 6x + 45

9x + 27 = 45

9x = 18

Respuesta :

mitchellbabcoc
mitchellbabcoc mitchellbabcoc
  • 11-01-2017
Should have subtracted 3x
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jsmitty
jsmitty jsmitty
  • 11-01-2017
he added 6x when it was moved across instead of subtracting 6x. so it should say -3x = 18 not 9x=18

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