can someone help w/ my math? One of the problems are below, just tell me how to do it with the final answer?

5x-x=(-12)

7 Answers

Relevance
  • 1 decade ago
    Favorite Answer

    5x-x=(-12)

    you can always put a 1 in front of any variable that does not have number in front of it so...

    5x-1x=(-12)

    4x=(-12) (divide each sides by 4)

    x= -3

    if one if you divide one thing from another and only one of them is negative, your answer will always be negative

  • Anonymous
    1 decade ago

    well you start with 5x - x = -12.

    first, simplify the left side to 4x because 5x - 1x = 4x. Get it?

    so now the equation is 4x = -12. now divide each side by 4 to get rid of the 4 by the x. that now gives you, x = -4.

    in general, you want to get x alone, and to do that, do the opposite of any number with x to cancel it out, but you also have to do the opposite of the other side. so if the equation was 4x - 3 = 13, you would first add 3 to each side, giving you 4x = 16, then you would divide each side by 4, giving you x = 4. just ask if you don't get it or need more help :)

    Source(s): math
  • 1 decade ago

    5x-x= -12

    4x=-12 divide! by 4 on both sides

    x=(-3)

    Source(s): If you need help e-mail me my teacher from algebra last year said I was great at solving equations
  • 1 decade ago

    Add all like terms. Which would give you 4x = -12

    Then Divide both sides by 4

    x = 3

  • How do you think about the answers? You can sign in to vote the answer.
  • 1 decade ago

    5x-x= -12

    4x= -12

    x= -12/4

    x= -3

    hope that helps

    Source(s): math class
  • Anonymous
    1 decade ago

    5x - x = -12

    4x = -12

    x = -3

  • 1 decade ago

    Molly is right

Still have questions? Get your answers by asking now.