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anonymous

  • one year ago

A student is trying to solve the system of two equations given below: Equation P: y + z = 6 Equation Q: 5y + 9z = 1 Which of the following is a possible step used in eliminating the y-term? (y + z = 6) ⋅ 9 (y + z = 6) ⋅ −5 (5y + 9z = 1) ⋅ 9 (5y + 9z = 1) ⋅ 5

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  1. anonymous
    • one year ago
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    @Preetha

  2. anonymous
    • one year ago
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    please help me

  3. anonymous
    • one year ago
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    i gave you a medal

  4. geerky42
    • one year ago
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    You want to eliminate y terms, so you would want coefficient of y to be same, so you can just subtract equations there, right?

  5. anonymous
    • one year ago
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    I was thinking B or C

  6. anonymous
    • one year ago
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    alisurfcat i gave you a medal

  7. geerky42
    • one year ago
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    So for first equation, coefficient of y is 1. In second equation, it is 5. So you want to multiply first equation by 5 so you can subtract. (Or -5 then add)

  8. geerky42
    • one year ago
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    Right?

  9. anonymous
    • one year ago
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    she right

  10. anonymous
    • one year ago
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    I think so, so it will be B?

  11. anonymous
    • one year ago
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    yes

  12. anonymous
    • one year ago
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    thanks

  13. anonymous
    • one year ago
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    your welcome

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spraguer (Moderator)
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