6th grade Math

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9 + 5k = 45 + 2K
the sample shows operation S9 to come up with
5K=36+2k assuming subtract 9 from the 45

sample shows K=12 how did they come up with that?

  • 6th grade Math -

    9 + 5k = 45 + 2K

    Subtract 9 from both sides.

    5k = 45 - 9 + 2k

    Subtract 2k from both sides.

    5k - 2k = 36

    3k = 36
    k = 36/3
    k = 12

  • 6th grade Math -

    9 +5k = 45 + 2k
    -2k -2k
    that cancels out now left with
    9 + 3k = 45
    -9 -9 (-9 form both sides left with)
    5k = 36 then divide both sides by 3 and 3 = what

  • 6th grade Math -

    Thank you!

  • 6th grade Math -

    You're welcome.

  • 6th grade Math -

    please i need help !!! :<

  • 6th grade Math -

    HI i have the same problem for math hw and i need help doing it to having trouble finding out answer

  • 6th grade Math -

    This info need a little more explonation or ex. :(

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