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Solving by substitution Quiz: printable

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Solving by substitution Quiz

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10 questions. Calculator allowed. Show your working. steplyclass.com/algebra-1/solving-by-substitution/quiz/

  1. 1

    Solve by substitution: 2x + y = 7, x โˆ’ 2y = 6

    Answer: ____________________

  2. 2

    Solve by substitution: x + 3y = 10, 4x + y = 18

    Answer: ____________________

  3. 3

    Solve by substitution: 2x + y = 1, 3x + 2y = 4
    1. A) (x, y) = (โˆ’2, 5)
    2. B) (โˆ’3, 7)
    3. C) (x, y) = (5, โˆ’2)
  4. 4

    Solve by substitution: 5x + y = 9, 2x โˆ’ 3y = 7

    Answer: ____________________

  5. 5

    Solve by substitution: x โˆ’ 2y = โˆ’2, 3x + 2y = 34

    Answer: ____________________

  6. 6

    Solve by substitution: 2x โˆ’ y = 3, x + 3y = 12

    Answer: ____________________

  7. 7

    Solve by substitution: x + 4y = 3, 2x โˆ’ 3y = โˆ’16

    Answer: ____________________

  8. 8

    Solve by substitution: x โˆ’ y = 2, 3x + 2y = 21

    Answer: ____________________

  9. 9

    Solve by substitution: a + 2b = 7, 3a โˆ’ b = 7
    1. A) (a, b) = (3, 2)
    2. B) (7, 0)
    3. C) (a, b) = (2, 3)
  10. 10

    Solve by substitution: x + y = 3, 2x โˆ’ 5y = โˆ’1

    Answer: ____________________

Answer key

  1. (x, y) = (4, โˆ’1)
  2. (x, y) = (4, 2)
  3. A (x, y) = (โˆ’2, 5)
  4. (x, y) = (2, โˆ’1)
  5. (x, y) = (8, 5)
  6. (x, y) = (3, 3)
  7. (x, y) = (โˆ’5, 2)
  8. (x, y) = (5, 3)
  9. A (a, b) = (3, 2)
  10. (x, y) = (2, 1)

Every answer solved step by step: steplyclass.com/algebra-1/solving-by-substitution/quiz/answers/