anonymous
  • anonymous
What is the solution of the system? y = 1/2 x 2x + 3y = 28
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
If you help and get them right i will give you a medal and a new friend request!
precal
  • precal
wow, I live for medals (really, I just love doing math)
precal
  • precal
|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

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anonymous
  • anonymous
Would you add the 1/2 x to the 2x?
anonymous
  • anonymous
no i think u subtract!!
anonymous
  • anonymous
???
anonymous
  • anonymous
you just said do u add the 1/2 an i said no i think u add!! well put it this away idk
precal
  • precal
|dw:1353456394619:dw|
precal
  • precal
|dw:1353456429015:dw|
precal
  • precal
|dw:1353456456530:dw|
anonymous
  • anonymous
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 .....
anonymous
  • anonymous
oh wow...can i lag any much more ...sorry precal ._.

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