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anonymous

  • 5 years ago

hey what is 5 over 9 = 3n-2 over 18 i got 10 but the textbook answer says 9 can u please help me

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  1. anonymous
    • 5 years ago
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    ok lets see if I can go through and find out where you might have gone wrong

  2. anonymous
    • 5 years ago
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    ok thank you

  3. anonymous
    • 5 years ago
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    ok I got n=4

  4. anonymous
    • 5 years ago
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    But how if the book says 9

  5. anonymous
    • 5 years ago
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    5/9=3n-2/18 multiply each side by 18 10=3n-2 add 2 to each side 12=3n divide each side by 3 4=n

  6. anonymous
    • 5 years ago
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    what do the directions say in the book

  7. anonymous
    • 5 years ago
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    they just say to find what the exponent equals

  8. anonymous
    • 5 years ago
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    well n=4 idk how they got it equals 9..?

  9. anonymous
    • 5 years ago
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    show me what you did to get 10

  10. anonymous
    • 5 years ago
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    3n-2=1n 9*1=9n 9n=5*18 9n=90 90/9=10 n=10

  11. anonymous
    • 5 years ago
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    thats what i did

  12. anonymous
    • 5 years ago
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    ok well first of al you can only add/subtract/divide/multiply common things so you wouldn't be able to subtract 2 from 3n because they are not alike.

  13. anonymous
    • 5 years ago
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    so should i do this: 9-2=7 7*3n=21n 21n=5*18 21n=90 90/27=3 i dont get this

  14. anonymous
    • 5 years ago
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    i think u've read something wrong with the question or the answer, cause with how u've typed it up i agree that the answer would be n=4

  15. anonymous
    • 5 years ago
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    ok thanks

  16. anonymous
    • 5 years ago
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    no problem

  17. anonymous
    • 5 years ago
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    ok bye

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