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anonymous

  • one year ago

Two equations are shown: • Equation 1: 3/4(x−12)=12 •Equation 2: 3/4y−12=12 Solve each equation. Then, enter a number in each box to make this statement true. The value of x is: The value of y is:

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  1. geerky42
    • one year ago
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    \[\dfrac34(x-12)=12\] We need to isolate x. Any idea what to do with \(\dfrac34\)?

  2. anonymous
    • one year ago
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    convert it to a decimal?

  3. geerky42
    • one year ago
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    Sure. Then we have \(.75(x-12) = 12\) We still need to get rid of .75

  4. geerky42
    • one year ago
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    Maybe do something to both sides to cancel .75 out?

  5. anonymous
    • one year ago
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    subtract .75 from .75 and 12?

  6. geerky42
    • one year ago
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    I would go with dividing.

  7. geerky42
    • one year ago
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    \(\dfrac{.75(x-12)}{.75} = \dfrac{12}{.75}\) \(\dfrac{\cancel{.75}(x-12)}{\cancel{.75}} = \dfrac{12}{.75}\) \(x-12 = \dfrac{12}{.75}\)

  8. anonymous
    • one year ago
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    okk

  9. geerky42
    • one year ago
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    Do you understand what is going on?

  10. anonymous
    • one year ago
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    yes so 12 divided by .75 is 16?

  11. anonymous
    • one year ago
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    so then 12/.75 is equal; to 9, |dw:1435197556041:dw|

  12. anonymous
    • one year ago
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    okk so x=28? 28-12=16 witch is 16=16? right

  13. anonymous
    • one year ago
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    yes that right :)

  14. anonymous
    • one year ago
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    yay thank u guys!!!!! :-)

  15. anonymous
    • one year ago
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    now equation 2 I need help also

  16. anonymous
    • one year ago
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    do I do the same thing as I did the first time?

  17. anonymous
    • one year ago
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    no its then 3/4Y-12 = 12 you add 12 to both sides and its 3/4Y = 24 you divide btoh sides by 3/4 and its Y = 32

  18. anonymous
    • one year ago
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    its a lot to chew so if you get stuck ill help you with each part

  19. anonymous
    • one year ago
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    yea I'm a little confused can u explain please

  20. anonymous
    • one year ago
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    |dw:1435198260900:dw|

  21. anonymous
    • one year ago
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    |dw:1435198422351:dw|

  22. anonymous
    • one year ago
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    |dw:1435198514780:dw|

  23. anonymous
    • one year ago
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    its not addition its multiplication so its (.75*Y) - 12 = 12

  24. anonymous
    • one year ago
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    but u said add 12 to both sides

  25. anonymous
    • one year ago
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    i really like using fractions but ill convert it to decimals lets start over just forget what i said

  26. anonymous
    • one year ago
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    okk

  27. anonymous
    • one year ago
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    |dw:1435198918158:dw|

  28. anonymous
    • one year ago
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    okk thank u

  29. anonymous
    • one year ago
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    i really hope i helped, sorry if i confused you

  30. anonymous
    • one year ago
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    no no I understand thank u

  31. anonymous
    • one year ago
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    @kenzylee

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