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  • Identical expressions

  • two *x + sign(x) = zero
  • 2 multiply by x plus sign(x) equally 0
  • two multiply by x plus sign(x) equally zero
  • 2x + sign(x) = 0
  • 2x + signx = 0
  • Similar expressions

  • 2*x - sign(x) = 0

2*x + sign(x) = 0 equation

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