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Solving equations

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  • 5x - 2x = 21
    x = 7
  • 5x + 4 = 2x
  • 6b + 9 = 27
    b = 3
  • 5y + 8 = 8
    y = 0
  • 4(x+2) +3(x+1) = 25
    x = 2
  • 4x - 2 + 3x + 16 = 0
    -2
  • -3x = -9
    x = 3
  • 5r = -2r - 14
    r = -2
  • x + 4 = 7
    x = 3
  • -20x = -60
    x = 3
  • 4x - 2 = 3x + 7
    x = 9
  • (x+2)(x-3)
    x^2 - x - 6
  • (x^2)(3x+4)
    3x^3 + 4x^2
  • 2x + 2x = 20
    x = 5
  • 8x = 16
    x = 2
  • 30c = 30
    c = 1
  • 3x = 15
    x = 5
  • 3(x - 4) = 15
    x = 9
  • x^2 = 64
    x = 8
  • 4x = 3x + 4
    x = 4
  • 2(x^2 + 4) = 40
  • x - 9 = 15
    24
  • 5x + 4 = 2x + 22
    x = 3
  • 2(x + 3) = 22
    8
  • 7x = 0
    x = 0
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