algebra

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what is 3x-12=14?


Ok bob, what happens if we add 12 to both sides? Why can we do this?
After that step, what happens if we divide both sides by 3? Why is that allowable? What value do we get for x then?

  • algebra -

    3x-12=14
    3x-12=14
    +12=+12
    3x=26
    26/3x
    x=8.7

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