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anonymous

  • one year ago

Medal If y = 5x +8 , write x= f (y)

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  1. anonymous
    • one year ago
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    y = 5x +8 Subtract -5x from both sides -5x + y = 8 Subtract y from both sides -5x = -y +8 Divide both sides by -5 That should give you your answer. :)

  2. anonymous
    • one year ago
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    how would you solve this

  3. anonymous
    • one year ago
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    help me please

  4. anonymous
    • one year ago
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    i got -1.6 as my answer am i right

  5. anonymous
    • one year ago
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    Tell me how you got 1.6

  6. anonymous
    • one year ago
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    -1.6*

  7. anonymous
    • one year ago
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    8/-5 = 1.6

  8. anonymous
    • one year ago
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    Do you only need the y value?

  9. anonymous
    • one year ago
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    i need the x value

  10. anonymous
    • one year ago
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    So you are isolating x, correct?

  11. anonymous
    • one year ago
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    yes

  12. anonymous
    • one year ago
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    You just divide the rest of the equation by -5, and x is then isolated. x = -1/5y - 8/5

  13. anonymous
    • one year ago
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    Unless your teacher wants you to, you don't have to solve the fractions either.

  14. anonymous
    • one year ago
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    -1/5y = -0.2 -1.6

  15. anonymous
    • one year ago
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    Where did you get the -0.2 and -1.6?

  16. anonymous
    • one year ago
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    I know how you got -1.6

  17. anonymous
    • one year ago
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    -1 divded by 5 = -0.2

  18. anonymous
    • one year ago
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    You have to keep your variables in the equation, so you would have... x = -0.2y - 1.6

  19. anonymous
    • one year ago
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    Unless you are given another equation or a set of coordinates, you can't do much more to the equation given, so x = -1/5y - 8/5 or x = -0.2y - 1.6 would be your final answer.

  20. anonymous
    • one year ago
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    thank you so much

  21. anonymous
    • one year ago
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    You're very welcome. :)

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