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ashking1

  • one year ago

Find the real numbers x and y that make the equation true. -4 + yi = x + 3i

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  1. freckles
    • one year ago
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    if x=-4 then x is ? if yi=3i then y is?

  2. freckles
    • one year ago
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    for example if a+bi=c+di then we have a=c which means a is c and we have bi=di which means b=d or b is d

  3. ashking1
    • one year ago
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    so they swap positions its actually -4 +3i = -4+ 3i

  4. freckles
    • one year ago
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    can you say what x and y are? like what is in place of x and what is in place of y?

  5. freckles
    • one year ago
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    |dw:1437938071071:dw|

  6. DanJS
    • one year ago
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    too much thinking, make the right look like the left. :)

  7. freckles
    • one year ago
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    well i thought I kind of gave the answer already :p

  8. DanJS
    • one year ago
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    yea

  9. freckles
    • one year ago
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    It is hard to do much explaining on this one

  10. ashking1
    • one year ago
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    x=-4 and yi=3i

  11. freckles
    • one year ago
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    x=-4 and y=?

  12. ashking1
    • one year ago
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    3

  13. freckles
    • one year ago
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    yes!

  14. freckles
    • one year ago
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    you are just trying to make both sides look the same

  15. freckles
    • one year ago
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    that is what equality means that we want both sides to be the same

  16. ashking1
    • one year ago
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    ok thanks freckles

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spraguer (Moderator)
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