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anonymous

  • one year ago

A system of equations is shown below: Equation A: 4c = d − 8 Equation B: c = 5d + 8 Which of the following steps should be performed to eliminate variable d first? Multiply equation B by 4. Multiply equation A by −5. Multiply equation A by 4. Multiply equation B by 5.

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  1. anonymous
    • one year ago
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    @Godlovesme

  2. Godlovesme
    • one year ago
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    so if u want to eliminate d we should have two opposite but the same constant like in this case we have 5d in the second equation so we want the first one to have the same constant (5) but with different sign got it?

  3. anonymous
    • one year ago
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    yes

  4. Godlovesme
    • one year ago
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    so what do u think is the asnwer?

  5. anonymous
    • one year ago
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    D

  6. Godlovesme
    • one year ago
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    close but remember it has to be a different sign, in the second eqn we have positive 5 so we need ....

  7. anonymous
    • one year ago
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    -5

  8. Godlovesme
    • one year ago
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    awesome :D

  9. Godlovesme
    • one year ago
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    u got the asnwer right? :P

  10. anonymous
    • one year ago
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    b thanks!!!!!!!!!!!

  11. Godlovesme
    • one year ago
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    anytime(:

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