anonymous
  • anonymous
Which of the following statements is true about the given system of linear equations? –x + y = 4 3x + y = 32 A. The system has a unique solution. B. The system has infinitely many solutions. C. The system has no solution. D. The system has two solutions.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Do you know how to solve these equations?
anonymous
  • anonymous
@corruptedalice96 Not really ._.
anonymous
  • anonymous
Let's start with -x + y = 4

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More answers

anonymous
  • anonymous
|dw:1433337440070:dw|
anonymous
  • anonymous
|dw:1433337471082:dw|
anonymous
  • anonymous
now you want to plug in this into 3x + y = 32
anonymous
  • anonymous
|dw:1433337577208:dw|
anonymous
  • anonymous
Combine like terms..
anonymous
  • anonymous
|dw:1433337656891:dw|
anonymous
  • anonymous
|dw:1433337705639:dw|
anonymous
  • anonymous
|dw:1433337733272:dw|
anonymous
  • anonymous
We've got the first part down.
anonymous
  • anonymous
Now input x into -x + y = 4
anonymous
  • anonymous
|dw:1433337793286:dw|
anonymous
  • anonymous
solutions x and y mean there are ultimately 2 solutions
anonymous
  • anonymous
Actually 1 solution, my mistake
anonymous
  • anonymous
So it's A ? Because it only has one solution, therefore a unique solution?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
Thank you ^^

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