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Algebra

posted by on .

I have a math CRCT test today and I needed some help on a last minute review problem.
Can someone please explain how to solve this?

1. 12x-3+6x-2=31

-MC

  • Algebra - ,

    add the x's and "move" the constants to the other side ---->
    12x+6x = 31 + 3 + 2
    18x = 36
    divide both sides by 18
    18x/18 = 36/18
    x = 2

  • Algebra - ,

    Combine like terms.

    18x -5 = 31

    Add 5 to both sides.

    18x = 36

    Divide by 18.

    x = 2

    I hope this helps. Thanks for asking.

  • Algebra - ,

    Thanks! I realllyyy hope I pass this!!
    -MC

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