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anonymous

  • one year ago

The sum of two numbers is x. If one of the numbers is 12, what is the other? 12 - x x - 12 12 + x 12 x

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  1. freckles
    • one year ago
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    so you are given the sum of two numbers is x. (say the numbers are k and L)-(so L+k=12) one of those numbers is 12. (replace one of the letters there, say replace L with 12) so you are given 12+k=x just solve for other number (which we called k)

  2. anonymous
    • one year ago
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    12+x

  3. freckles
    • one year ago
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    did you try solving for k ?

  4. anonymous
    • one year ago
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    yeah

  5. freckles
    • one year ago
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    so how did you solve this equation for k 12+k=x

  6. anonymous
    • one year ago
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    12+x just makes sense to me sum of two numbers 12 is one x is the outher

  7. freckles
    • one year ago
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    ok since you don't know how to solve the equation above for x I can give you one more way to look at this

  8. freckles
    • one year ago
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    you are given them of 12 and another number is x and they are asking what that other number is well 12+which of your choices give you x

  9. freckles
    • one year ago
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    choices: 12 - x x - 12 12 + x 12 x --- well is 12+(12-x) = x? or is 12+(x-12)=x? or is 12+(12+x)=x? or is 12+(12x)=x?

  10. freckles
    • one year ago
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    which of these equations are true

  11. freckles
    • one year ago
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    you are given the sum of 12 and another number is x *

  12. anonymous
    • one year ago
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    12x

  13. freckles
    • one year ago
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    12x+12 how does this simplify to x?

  14. anonymous
    • one year ago
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    idk im not good at algerbra

  15. freckles
    • one year ago
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    you don't have to be you have to be good at arithmetic for this question do you know what 12-12=?

  16. freckles
    • one year ago
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    12-12... if you have 12 apples and someone takes all 12 apples away then how many apples are you left with?

  17. anonymous
    • one year ago
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    0

  18. freckles
    • one year ago
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    so what does this simplify to then: 12+(x-12)

  19. freckles
    • one year ago
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    you can rearrange it... 12-12+x

  20. anonymous
    • one year ago
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    x-12

  21. freckles
    • one year ago
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    12-12+x = 0+x = x

  22. freckles
    • one year ago
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    and above solving this equation for k : 12+k=x you would subtract 12 on both sides -12 -12 --------------- k=x-12 just going back to how to do the previous way

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