anonymous
  • anonymous
Solve the following system of equations. Express your answer as an ordered pair in the format (a,b), with no spaces between the numbers or symbols. 2x+7y=4 -4x-3y=14 how would i go about this? please help!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
4x+17y=8 -4x-3y=14 --> 14y=22
anonymous
  • anonymous
how would i put that into an ordered pair?? @PFEH.1999
anonymous
  • anonymous
what?

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anonymous
  • anonymous
Well ok 14y=22 you can solver for y
anonymous
  • anonymous
it wants me to express the answer as an ordered pair. @PFEH.1999
anonymous
  • anonymous
can you tell me what y is in 14y=22
anonymous
  • anonymous
1.57? @RyanL.
anonymous
  • anonymous
yes :)
anonymous
  • anonymous
yes you are correct now we know y=1.57 Now we need to know what x=?
anonymous
  • anonymous
To do this we must plug in what y is into either the first or the second equation.
anonymous
  • anonymous
then solve for x
anonymous
  • anonymous
2x+7y=4 y=1.57 so that means 2x+7(1.57)=4 Now can you solver for x?
anonymous
  • anonymous
first step is multiplying out 7 and 1.57 ....see if you can do the rest.
anonymous
  • anonymous
@RyanL. , I think she can do it herself :D
anonymous
  • anonymous
If you want to check your work just post the answer you get here and we can tell if you got it right or wrong.
anonymous
  • anonymous
sorry i stepped away for a little while @RyanL. haha i wish i could do this myself! Math is my kryptonite though :( hold on one moment please!
anonymous
  • anonymous
I got x=-3.495 @RyanL. is that anywhere near right?
anonymous
  • anonymous
yes that's right x=-3.50 y=1.57 Where your order pair is (x,y) just replace the y and x with the numbers you found
anonymous
  • anonymous
so (-3.50,1.57)? @RyanL.
anonymous
  • anonymous
is that the answer?
anonymous
  • anonymous
yeah that should be
anonymous
  • anonymous
i got it wrong.. its -5,2 :(
anonymous
  • anonymous
4x+17y=8 -4x-3y=14 should have been 4x+14y=8 -4x-3y=14 11y=22 and y = 2
anonymous
  • anonymous
so the question is incorrect?
anonymous
  • anonymous
yeah @PFEH.1999
anonymous
  • anonymous
@PFEH.1999 you made a mistake it was suppose to be 14y not 17y
anonymous
  • anonymous
yes :( sorry :)
anonymous
  • anonymous
and x = -5

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