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anonymous

  • one year ago

To solve the system of equations below, Grace isolated the variable y in the first equation and then substituted into the second equation. What was the resulting equation?

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  1. anonymous
    • one year ago
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    http://media.apexlearning.com/Images/201011/29/8440faac-a63d-4ac4-a34d-e4cc0068f129.gif

  2. anonymous
    • one year ago
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    @PRAETORIAN.10 @Loser66

  3. anonymous
    • one year ago
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    y = (12x)/3 y = 4x (value of y from equation 1) substitute it in equation 2 you'll get value of x

  4. anonymous
    • one year ago
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    im confused

  5. anonymous
    • one year ago
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    why its so simple? type out what exactly confuses you?

  6. anonymous
    • one year ago
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    dont you have to single out the x?

  7. anonymous
    • one year ago
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    you have two equations k? I took value of x from equation 1 (3y = 12x)

  8. anonymous
    • one year ago
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    thats not how substitution method works... you have to get value of x or y from anyone of the two equations and substitute in the other one.

  9. anonymous
    • one year ago
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    hmmm

  10. anonymous
    • one year ago
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    try it out yourself and post your work here I'll help you correct it k?

  11. anonymous
    • one year ago
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    how do i do that

  12. anonymous
    • one year ago
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    http://www.purplemath.com/modules/systlin4.htm see this example it is self explanatory... You have to try it yourself in order to learn it

  13. anonymous
    • one year ago
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    i got it

  14. anonymous
    • one year ago
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    awesome dude !

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spraguer (Moderator)
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