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  • 3x + 3 = 18
    x = 5
  • 11 = 5 + 2x
    x = 3
  • 3x + 2 = 14
    x = 4
  • 6x + 7  =  13
    x = 1
  • 2x + 3 = x + 11
    x = 8
  • x + 3 = 15 
    x = 12
  • 2x + 9 = 21
    x = 6
  • 4x + 8 = 12
    x = 1
  • x + 6 = 13
    x = 7
  • 7 + 2x = 15
    x = 4
  • 2x + 11 = 29
    x = 9
  • x + 9 = 17
    x = 6
  • 2x +9 = 29
    x = 10
  • x + 5 = 12
    x = 7
  • z + 8 = 13
    z = 5
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