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JustinR

What is the solution of the system? y = 1/2 x 2x + 3y = 28

  • one year ago
  • one year ago

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  1. JustinR
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    If you help and get them right i will give you a medal and a new friend request!

    • one year ago
  2. precal
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    wow, I live for medals (really, I just love doing math)

    • one year ago
  3. precal
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    |dw:1353455860020:dw|ok tell me my next step, on the upper right hand corner there is a little pencil, you can write on my slide. I will help you if you get it wrong

    • one year ago
  4. JustinR
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    Would you add the 1/2 x to the 2x?

    • one year ago
  5. latremese40
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    no i think u subtract!!

    • one year ago
  6. JustinR
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    ???

    • one year ago
  7. latremese40
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    you just said do u add the 1/2 an i said no i think u add!! well put it this away idk

    • one year ago
  8. precal
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    |dw:1353456394619:dw|

    • one year ago
  9. precal
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    |dw:1353456429015:dw|

    • one year ago
  10. precal
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    |dw:1353456456530:dw|

    • one year ago
  11. Spectrum
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    You solve this system using substitution ..since there is already an equation that just a has a variable = , you plug ithat in the other equation.... so 1/2x goes where the y is ....1/2 of 3x is 1.5 x which you add to 2x and you get 3.5 x = 28 ..you divide by 3.5 on both sides and get x = 8 ..you then go back into the equation and plug in 8 for x and solve for y ..which 1/2(8) = 4 so y is 4 ...and that gives you the coordinates of your answer .....

    • one year ago
  12. Spectrum
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    oh wow...can i lag any much more ...sorry precal ._.

    • one year ago
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