Respuesta :

sqdancefan

9514 1404 393

Answer:

  • incorrectly
  • one solution

Step-by-step explanation:

The third line of the solution is incorrect. It should be ...

  5x +2 = -5x +2

Then the one solution can be found:

  10x = 0 . . . . . . . . . add 5x-2 to both sides

  x = 0

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