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Math Help - Assorted Signed numers probs

  1. #1
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    Assorted Signed numers probs

    Please solve and explain how these are solved.





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    [quote=radioflyer01;38585]Please solve and explain how these are solved.



    [\quote]
    The steps should be fairly transparent:

    \frac{x}{6} - (-10) = 3

    \frac{x}{6} + 10 = 3

    \frac{x}{6} + 10  - 10 = 3 - 10

    \frac{x}{6} = -7

    6 \cdot \frac{x}{6} = 6 \cdot (-7)

    x = -42

    -Dan
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  3. #3
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by radioflyer01 View Post
    Please solve and explain how these are solved.

    \frac{x}{2} = 6

    2 \cdot \frac{x}{2} = 2 \cdot 6

    x = 12

    -Dan
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  4. #4
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by radioflyer01 View Post
    Please solve and explain how these are solved.

    Based on what I did in the first two, show me what you think you ought to do. Don't worry if it's wrong or incomplete, just post what you can get.

    -Dan
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  5. #5
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    41?
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  6. #6
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by topsquark View Post
    Based on what I did in the first two, show me what you think you ought to do. Don't worry if it's wrong or incomplete, just post what you can get.

    -Dan
    Quote Originally Posted by radioflyer01 View Post
    41?
    Well, I was kinda hoping you'd show me how you did it so I could point out where you were right and, perhaps, where you went wrong.

    30 + y = -10

    We need to get y by itself, so I'm going to take away 30 from the RHS. Thus I also have to take away 30 from the LHS:
    30 + y - 30 = -10 - 30

    y = -40

    -Dan
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  7. #7
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    I just figured that thirty minus forty is ten. The long process is still a little confusing.
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  8. #8
    Forum Admin topsquark's Avatar
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    Quote Originally Posted by radioflyer01 View Post
    I just figured that thirty minus forty is ten. The long process is still a little confusing.
    Just keep at it. You'll get there. The whole process can be long or short, depending on the person, but we've all been there and gotten through it. Practice is the key!

    -Dan
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