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Using elimination method to solve systems of equations

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Intros
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Lessons
    • What is a system of equations?
    • What does it mean by "solving system of equations by elimination"?
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Examples
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Lessons
  1. Solve each linear system algebraically by elimination
    1. 3x + 4y = 11
      x - 4y = -7
    2. 6x - 1 = 2y
      9x + 4 = 5y
    3. 3(x+2) - (y+7) = -10
      5(x+1) + (y+3) = 19
    4. x−35−2(y+1)10=−75 {{x-3} \over 5} - {{2(y + 1)} \over 10} = -{ 7 \over 5}
      x+54+3(y−3)2=−12 {{x+5} \over 4} + {{3(y - 3)} \over 2} = - {1 \over 2}