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  2. Topic
    Mathematics
  3. Study Set
    Intermediate Algebra Level 1
  4. Exam
    Exam 3: Systems of Equations
  5. Question
    Solve\(\left\{ \begin{array} { l } 5 a + 5 b - 3 c + 9 d = - 6 \\ 3 a - 9 b - 9 c - 2 d = - 11 \\ 6 a - 3 b + 6 c + 9 d = - 9 \\ a - b + c + d = - 2 \end{array} \right.\)
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Question 162

Question 162

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Solve: {5a+5b−3c+9d=−63a−9b−9c−2d=−116a−3b+6c+9d=−9a−b+c+d=−2\left\{ \begin{array} { l } 5 a + 5 b - 3 c + 9 d = - 6 \\3 a - 9 b - 9 c - 2 d = - 11 \\6 a - 3 b + 6 c + 9 d = - 9 \\a - b + c + d = - 2\end{array} \right.⎩⎨⎧​5a+5b−3c+9d=−63a−9b−9c−2d=−116a−3b+6c+9d=−9a−b+c+d=−2​

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