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  • x + 2x + 7 = 3x + 7
    Infinite
  • 2x + 3 = 2x + 3
    Infinite
  • 2x + 8 = 2(x - 4)
    None
  • -3(x + 5) = -3x + 15
    None
  • 3x + 7 = 11x + 15
    One
  • 3(x + 4) = 3x + 11
    None
  • 4x + 2x + 5 = 7x - 1
    One
  • 6x - 5 = 4x - 5
    One
  • -2(x + 3) = -2x - 6
    Infinite
  • x + 5x + 12 = 3(2x + 4)
    Infinite
  • 2(x - 3) = 2x - 6
    Infinite
  • 2x + 3 = 2x + 7
    None
  • 8x + 2 = -8x + 2
    One
  • 4(x + 1) - 3 = 4x + 1
    Infinite
  • x + 2x + 1 = 3x + 3
    None
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