newwar
  • newwar
help me please medal and fan
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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newwar
  • newwar
Which ordered pair is the solution to the system of equations? https://static.k12.com/bank_packages/files/media/mathml_8dbf6dd9d4acbd8b54a2dc201e4768407b59a1c1_1.gif A. (2, −3) B. (−2, 1) C. (5, −2) D. (−6, 5)
anonymous
  • anonymous
so first find x or y by itself then substitute the equation into the variable of the other equation will answer one coordinate ( sub the coordinate you find back into the normal equation)
anonymous
  • anonymous
|dw:1450398271943:dw|

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newwar
  • newwar
ok
anonymous
  • anonymous
Are you able to show the next step or solve the problem? take the x equation by itself and substitute it into x - 3y = -11
newwar
  • newwar
ok
newwar
  • newwar
o ok no rush
anonymous
  • anonymous
|dw:1450399066374:dw| solve for y coordinate
anonymous
  • anonymous
so you should get -4y = 12 .... divide the -4 to both sides then you have your y coordinate
anonymous
  • anonymous
This type of problem you can check your work at the end by substituting both coordinates into either or both equations such as in this case should equal 11 and -1|dw:1450399564594:dw|
newwar
  • newwar
so it is b
anonymous
  • anonymous
no B is (-2 , 1) which says x = -2 and y = 1..... we solved and found y =-3 which had x =2 as the other coordinate and showed one equation to be valid with ( 2, -3)
newwar
  • newwar
ooooooo so x =-2
newwar
  • newwar
which means its a
anonymous
  • anonymous
x = 2
newwar
  • newwar
thank you very much
anonymous
  • anonymous
your welcome

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