Algebra

posted by .

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

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. algebra 1b

    i need help!!!!!!!!!!!! Please post your problem and your attempts to solve it. Then we'll be glad to help you. what's the problem?
  2. algebra

    Can someone please help me with this math problem?
  3. Algebra......Help Quick!!

    12a^3bc-18a^2bc^2+6a^2c, x^2+20x+36, 12x^4-8x^3-4x^2, x^2+36x, 9x^2+6x+1, 6x^3+11x-10, x^2+3x-6..............can someone please help me solve some of these problems if not all. I have forgotten how to solve them can someone please …
  4. Algebra II- please help!

    I just cannot seem to be able to grasp the concept of solving polynomial inequalities. Can someone please explain, step by step, how to solve them?
  5. Algebra

    Solve by substitution or elimination method: 4x – 5y = 14 -12x + 15y = -42 when i try this solution i end up cancelling out the whole problem. can someone please help me!
  6. Algebra, explain?

    So I have to solve this problem 9a=6(a+4) And then I wrote down: 9a=6a+24 but I don't know what to do from there, can someone explain to me please?
  7. algebra

    2x+(x-y)^3 when x=9 and y=7 This problem is from a test review sheet (answer included)I have almost filled a notebook trying to solve this.
  8. 5th Grade Math

    I need help on how to figure out compund area of a shape. I meen we have the math part of the CRCT tommorow and I'm STILL NOT sure how to do it?
  9. Math (just need some help)

    Solve the system using an augmented matrix. -x-3y=-17 2x-6y=-26 Can someone please explain what I am supposed to do in this problem?
  10. Algebra

    Please help me with this Algebra problem: The length of a rectangle is 91 less than six times the width of the rectangle. If the perimeter of the rectangle is 84 centimeters, what is the length of the rectangle?

More Similar Questions