anonymous
  • anonymous
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Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
What are your answers?
anonymous
  • anonymous
x=.75
anonymous
  • anonymous
it's not two equations, it's like one all together

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anonymous
  • anonymous
Yeah, x= .75 isnt right. Solve for y in one of the equations, then plug that expression in for y into the other. Then you can solve for x
anonymous
  • anonymous
okay, one sec then
anonymous
  • anonymous
2.5x-3(3.25x-y)=-13? :S
anonymous
  • anonymous
You did that wrong. The purpose is to have one variable to solve for. You still have 2. lets solve for y in the second equation y=3.25x+14 now plug the expression into the other equation for y 2.5x-3(3.25x+14)=-13 now solve for x
anonymous
  • anonymous
2.5x-9.75x-42=-13 -7.25x=29 x=?
anonymous
  • anonymous
i had the math right, for some reason though, i put -13+42=27 :S oops. thanks! is that all i have to do?
anonymous
  • anonymous
What did you get for x? dont you wanna solve for y also?
anonymous
  • anonymous
-.25
anonymous
  • anonymous
just plug it into the second equation to get y? :/
anonymous
  • anonymous
If you're doing systems of equations i assume you should know how to solve a simple equation...i did all of it except one step.. x=29/-7.25 x=-4
anonymous
  • anonymous
Input -4 into one of the equations for x and then solve for y
anonymous
  • anonymous
thank youu (:

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