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Dani101

  • 2 years ago

How do you do y=x-v/b

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  1. AEB047
    • 2 years ago
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    for what variable?

  2. Dani101
    • 2 years ago
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    For x

  3. jim_thompson5910
    • 2 years ago
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    Is the equation \[\Large y = \frac{x-v}{b}\] OR \[\Large y = x-\frac{v}{b}\] ??

  4. Dani101
    • 2 years ago
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    the first one

  5. jim_thompson5910
    • 2 years ago
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    your first step is to multiply both sides by 'b'

  6. jim_thompson5910
    • 2 years ago
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    what do you get when you do this?

  7. Dani101
    • 2 years ago
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    But i thought you cant multiply a different variable with another

  8. jim_thompson5910
    • 2 years ago
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    you can, there's no rule that says you can't

  9. jim_thompson5910
    • 2 years ago
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    x times y is just xy (sure we can't find the numeric value of that, but we can just say it's xy)

  10. Dani101
    • 2 years ago
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    Im confused, so like you multiply b by x and b by v?

  11. jim_thompson5910
    • 2 years ago
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    you just multiply both sides by 'b' to get \[\Large y = \frac{x-v}{b}\] \[\Large yb = x-v\] what's next?

  12. Dani101
    • 2 years ago
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    oh, um i really don't know, my teacher didn't really explain this to us. Don't you just leave the problem like that since you cant do anything else?

  13. jim_thompson5910
    • 2 years ago
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    no, you can add 'v' to both sides and this completely isolates x

  14. jim_thompson5910
    • 2 years ago
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    \[\Large yb = x-v\] \[\Large yb+v = x-v+v\] \[\Large yb+v = x\] \[\Large x = yb+v\]

  15. jim_thompson5910
    • 2 years ago
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    and now you're done

  16. Dani101
    • 2 years ago
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    Ohhhh, Thank you very much that was helpful

  17. jim_thompson5910
    • 2 years ago
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    yw

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