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anonymous

  • one year ago

A student is trying to solve the set of two equations given below: Equation A: x + z = 6 Equation B: 2x + 3z = 1 Which of the following is a possible step used in eliminating the z-term? Multiply equation B by 3. Multiply equation A by 2. Multiply equation B by 2. Multiply equation A by −3.

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  1. anonymous
    • one year ago
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    @LegendarySadist

  2. anonymous
    • one year ago
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    Make the top z equal to the negative of the bottom z.

  3. Sachintha
    • one year ago
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    Raise the coefficient of z so that it will have a negative value with the same magnitude of z in B.

  4. anonymous
    • one year ago
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    well I have done the work would it be A @LegendarySadist

  5. anonymous
    • one year ago
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    bc im not sure

  6. anonymous
    • one year ago
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    No, it would not

  7. Sachintha
    • one year ago
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    @LegendarySadist There are two answers. Isn't it?

  8. Sachintha
    • one year ago
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    Sorry one :)

  9. anonymous
    • one year ago
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    Well there would be 2 if we could use addition OR subtraction and weren't going specifically for the z term. But for the z term, there's only one, yeah.

  10. Sachintha
    • one year ago
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    It would have two answers if it was like this, Multiply equation A by 3. :D

  11. anonymous
    • one year ago
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    its -3

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spraguer (Moderator)
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