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wabbit1993

  • 3 years ago

HELP PLEASE. What is the value of x? 3√9+x=15

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  1. JenniferSmart1
    • 3 years ago
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    let's start with \[\sqrt9\] what does that equal?

  2. JenniferSmart1
    • 3 years ago
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    make a guess

  3. wabbit1993
    • 3 years ago
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    3

  4. JenniferSmart1
    • 3 years ago
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    perfect!

  5. JenniferSmart1
    • 3 years ago
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    \[3\cdot3+x=15\]

  6. JenniferSmart1
    • 3 years ago
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    what is 3 times 3?

  7. wabbit1993
    • 3 years ago
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    9

  8. JenniferSmart1
    • 3 years ago
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    ok so we now have \[9+x=15\] how do we get the 9 to the other side of the equal sign?

  9. JenniferSmart1
    • 3 years ago
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    make a guess

  10. wabbit1993
    • 3 years ago
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    i really don't know :/ i have been out of math for 3 years now. :(

  11. JenniferSmart1
    • 3 years ago
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    no problem

  12. JenniferSmart1
    • 3 years ago
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    we would subtract 9 from both sides to get x by itself so \[\cancel{9-9}+x=15-9\]

  13. JenniferSmart1
    • 3 years ago
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    Yes! Good job!

  14. wabbit1993
    • 3 years ago
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    THANK YOUUUU!!!!

  15. JenniferSmart1
    • 3 years ago
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    x=6

  16. JenniferSmart1
    • 3 years ago
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    medal please? =D

  17. wabbit1993
    • 3 years ago
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    did i do the medal right?? I've never used this site before lol

  18. JenniferSmart1
    • 3 years ago
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    I got it. Thank you!

  19. wabbit1993
    • 3 years ago
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    you're welcome. thank you so much as well!!

  20. JenniferSmart1
    • 3 years ago
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    Glad to help!

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